libkiwix 13.0.0
===============

 * Server:
  - Improved look & feel of kiwix-serve UI (@veloman-yunkan #917 #1021)
  - Increase tolerance to malformed (control characters) ZIM entry titles (@veloman-yunkan #1023)
  - API allowing to filter many categories at once (@juuz0 #974)
  - Cookie-less user language control (@veloman-yumkan #997)
  - Hack to fix Mirrorbrain based broken magnet URLs (@rgaudin #1001)
 * Fix handling of books with 'Name' metadata with dots (@mgautier #1016)
 * New method beautifyFileSize() to provide nice-looking book sizes (@vuuz0 #971)
 * Fix a few missing includes (@mgautierfr #978)
 * New functions to read - kiwix-serve - languages and categories streams (@juuz0 #967)
 * Add support of Fon language (@kelson42 #1013)
 * C++17 code base compliancy (@mgautierfr #996)
 * Use everywhere std::shared_ptr in place of raw pointer (@mgautierfr #991)
 * Do not use [[nodiscard]] attribute on compiler not supporting it (@mgautierfr #1003)
 * Add a non minified version of autoComplete.js (@mgautierfr #1008)
 * Multiple CI/CD improvements (@kelson42 #982)

libkiwix 12.1.0
===============

 * Server:
  - Introduce a `/nojs` endpoint to browse catalog and zim files with a browser without js (@juuz0 #897)
  - Translate the viewer (@veloman-yunkan #871 #846)
  - Display `mul` on tile when zim is multi-languages (@juuz0 #934)
  - Suggestion links point to the `/content` endpoint (@veloman-yunkan #862)
  - Correctly compress web fonts in http answers (@kelson42 #856)
  - Correctly encode link in suggestions (@veloman-yunkan #859 #860 #963)
  - Correctly encode url redirection (@veloman-yunkan #866 #890)
  - Properly handle user language, through cookies and http headers (@veloman-yunkan #849 #869)
  - Fix url encoding (@veloman-yunkan #870)
  - Fix viewer for viewer for SeaMonkey (@veloman-yunkan #887)
  - Make the downloader threadsafe (@mgautierfr #886)
  - Add RSS feed in the main page (pointing to the catalog) (@juuz0 #882 #920)
  - Correctly set the mimetype for json and ico (@veloman-yunkan #892)
  - `count=-1` correspond to unlimited count (instead of 0) (@veloman-yunkan #894)
  - Keep the navigation bar on top (@juuz0 #896)
  - Make the viewer's iframe "safe" (@veloman-yunkan #906 #930)
  - Correctly escape search link in XML Opds output (@veloman-yunkan #936)
  - Store values needed for the viewer js in the url fragment instead of the query string (@juuz0 #907)
  - Get rid of legacy OPDS API usage in the viewer (@veloman-yunkan #939)
  - Fix charset encoding declaration in OPDS response MIME types (@veloman-yunkan #942)
  - Fix PDF in the viewer (@veloman-yunkan #940)
  - Fix external links handling in the viewer (@veloman-yunkan #959)
  - Add tests of searching with accents (@mgautierfs #954)
 * Fix handling of missing illustration in the book (@veloman-yunkan #961)
 * Add support for multi languages zim files (@veloman-yunkan #904)
 * Fix includes for openbsd (@bentley #949)
 * Fix pathes in git to allow git clone on Windows (@adamlamar #868)
 * Switch to `main` as principal branch (instead of `master`) (@kelson42)
 * Remove libkiwix android publisher from the repository (@kelson42 #884)
 * Various fixes of meson and CI. (@mgautierfr @kelson42)



libkiwix 12.0.0
===============

 * [API Break] Remove wrapper around libzim (@mgautierfr #789)
 * Allow kiwix-serve to use custom resource files (@veloman-yunkan #779)
 * Properly handle searchProtocolPrefix when rendering search result (@veloman-yunkan #823)
 * Prevent search on multi language content (@veloman-yunkan #838)
 * Use new `zim::Archive::getMediaCount` from libzim (@mgautierfr #836)
 * Catalog:
  - Include tags in free text catalog search (@veloman-yunkan #802)
  - Illustration's url is based on book's uuid (@veloman-yunkan #804)
  - Cleanup of the opds-dumper (@veloman-yunkan #829)
  - Allow filtering of catalog content using multiple languages (@veloman-yunkan #841)
  - Make opds-dumper respect the namemapper (@mgautierfr #837)
 * Server:
  - Correctly handle `\` in suggestion json generation (@veloman-yunkan #843)
  - Better http caching (@veloman-yunkan #833)
  - Make `/suggest` endpoint thread-safe (@veloman-yunkan #834)
  - Better redirection of main page (@veloman-yunkan #827)
  - Remove jquery (@mgautierfr @juuz0 #796)
  - Better Viewer of zim content :
    . Introduce `/content` endpoints (@veloman-yunkan #806)
    . Switch to iframe based content viewer (@veloman-yunkan #716)
  - Optimised design of the welcome page:
    . Alignement (@juuz0 @kelson42 #786)
    . Exit download modal on pressing escape key (@juzz0 #800)
    . Add favicon for different devices (@juzz0 #805)
    . Fix auto hidding of the toolbar (@veloman-yunkan #821)
    . Allow user to filter books by tags in the front page (@juuz0 #711)
 * CI :
   - Trigger CI on pull_request (@kelson42 #791)
   - Drop Ubuntu Impish packaging (@legoktm #825)
   - Add Ubuntu Kinetic packaging (@legoktm #801)
 * Testing:
   - Test ICULanguageInfo (@veloman-yunkan #795)
   - Introduce fake `test` language to test i18n (@veloman-yunkan #848)
 * Fix documentation (@kelson42 #816)
 * Udpate translation (#787 #839 #847)


libkiwix 11.0.0
===============

 * [server] Add support for internationalization (@veloman-yunkan #679)
 * [server] Use gzip compression instead of deflat (mgautierfr #757)
 * [server] Version the static resources. This allow better invalidating
   browser cache when resources are changed (@veloman-yunkan #712)
 * [server|front] Use integer to query the host for page length (@juuz0 #772)
 * [server] Improve multizim search API:
   - Improvement of the cache system
   - Better API to select on which books to search in.
   - SysAdmin is now able to limit the number of book we search in for a multizim search
 * [server] Introduce a opensearch API for multizim fulltext search
 * [wrapper] Remove java wrapper
 * Testing:
   - Testing of search result pages content (@veloman-yunkan #765)
   - Better testing structure of xml search result (@veloman-yunkan #780)

libkiwix 10.1.1
===============

 * Correctly detect the number of article for older zims (<=6) (@mgautier #743)
 * [server] Fix fulltext search (@mgautierfr #724)
 * [server][internal] New way to build Error message (@veloman-yunkan #732 #738 #744)
 * Fix CI (@mgautierfr #736)

libkiwix 10.1.0
===============

 This release is an important one as it fixes a Xss vulnerability introduced
 in libkiwix 10.0.0

 * [SECURITY] Fix a Xss attack vulnerability (introduced in 10.0.0) (@juuz0 #721)
 * [server] Add a option to set a limit on the number of connexion per IP (@kelson42 #700)
 * [server] Do not display a lang tag in the UI if the book has no language (@juuz0 #706)
 * [server] Add the book title associated to a search results (@thavelick #705, @mgautierfr #718)
 * Add `dc:issued` to opds output stream (@veloman-yunkan #715)
 * Add handling of several languages not provided by ICU (@juuz0 #701)
 * [server] Add a caching system for search and suggestion (@maneeshpm #620)
 * Fix cross-compilation (@kelson42 #703)
 * Add unit-testing of suggestions and error pages (@veloman-yunkan #709 #710 #727)
 * Better testing system of html response (@veloman-yunkan #725)

libkiwix 10.0.1
===============

 * [server] The catalog search interpret `count=0` as no limit.
   This was the case for a long time. This was changed unintentionally
   (@veloman-yunkan #686)
 * [server] Correctly generere a human friendly title in the server frontend.
   (@juuz0 #687, @kelson42 #689)
 * [server] Fix download button if there is no url do download from.
   (@juuz0 #691)
 * Add non-minified isotope.pkdg.js
   Needed for debian packaging as we need the source and minified version is
   not the source (@legoktm #693)
 * [server] Add a tooltip with the full language for the lang tag.
 * CI fixes (@kelson42 @legoktm)

libkiwix 10.0.0
===============

 This release is huge release.
 The project has been renamed to libkiwix, it is more coherent with the library name.

 * Server front page :
  - Use js in the front page to display the available book,
     using the OPDS stream as source. The front page is now populated only with
     the visible books and user can search for books. (@MananJethwany #530, #541, #534)
     (@kelson42 #628)
  - Revamp css (@MananJethwany #559)
  - Correctly Convert 3iso language code to 2iso (@juuz0 #672)

 * Server suggestions search :
  - Add pagination for suggestion search (@maneeshpm #591)
  - Fix suggestion system (@MananJethwany #498)
  - Provide the kind and path (when adapted) to the suggestion answer (@MananJethwany #464)
  - The displayed suggestion have now highligth on the searched terms (@maneeshpm #505)
  - Properly handle html encoding of suggestions (@veloman-yunkan #458)

 * Server improvements :
  - Remove meta endpoints (@mgautier #669)
  - Add raw endpoints to get the raw content of a zim (@mgautierfr #646)
  - Add details on 404 error pages (@soumyankar #490)
  - Fix headbar insertion when `<head>` tag has attributes (@kelson42 #440)
  - Better headbar insertion (after charset definition) (@kelson42 #442)

 * New OPDS Stream v2 :
  - Add a list of categories (@veloman-yunkan)
  - Support for partial entries (@veloman-yunkan #602)
  - Support multiple icons size in the OPDS stream (@veloman-yunkan #577 #630)
  - Add language endpoint to catalog (@veloman-yunkan #553)
  - Add illustration API to get the illustration of a book (@mgautierfr #645)
  - OPDS search can now filter books by category (@veloman-yunkan #459)

 * Library improvements :
  - Allow the libray to be live reloaded when the library.xml changes (@veloman-yunkan #636)
  - Properly handle removing of book from the library (@veloman-yunkan #485)
  - Use xapian to search for books in the library (@veloman-yunkan #460, #488)

 * Added methods/functions :
  - Fix `fileExist` and introduce `fileReadable` (@juuz0 #668)
  - Add `getVersions` and `printVersions` functions (@kelson42 #665)
  - Add `getNetworkInterfaces()` and `getBestPublicIP()` functions (@juuz0 #622)
  - Add `get_zimid()` method to the search result (@maneeshpm #510)

 * Various improvements :
  - Better secret value for aria2c rpc (@juuz0 #666)
  - Avoid duplicated Archive/Reader in the Searcher (@veloman-yunkan #648)
  - Add basic documentation (@mgautierfr #640)
  - Do not use Reader internally (@maneeshpm #536 #576)
  - Remove dependency headers from our public headers (@mgautierfr #574)
  - Downloader now don't write metalink on the filesystem (@kelson42 #502)
  - Support opening a zim file using a fd (@veloman-yukan #429)
  - Use C++11 std::thread instead of pthread (@mgautierfr #445)
  - [READER] Do not crash if zim file has no `Counter` metadata (@mgautierfr #449)
  - Ensure libzim dependency is compiled with xapian (@mgautierfr #434)
  - Support video and audio mimetype in `getMediaCount` (@kelson42 #439)
  - Better parsing of the counterMap (@kelson42 #437)
  - Adapt libkiwix to libzim 7.0.0 (@mgautierfr #428)
  - Remove deprecated methods (@mgautierfr)
  - CI: Build package for Ubuntu Hirsute, Impish and Jammy (@legoktm #431 #568) and remove Groovy
  - Fix compilation for FreeBSD (@swills g#432)
  - Many fixes and improvement (@MananJethwany, @maneeshpm, @veloman-yunkan, @mgautierfr)

kiwix-lib 9.4.1
===============

 * Fix `M/Counter` parsing.
 * [SERVER] Adjust body padding-top for taskbar
 * Fix potential crash when stoping a server not started.
 * Various fix in build system and the CI.

kiwix-lib 9.4.0
===============

 * [SERVER] Make the headers handling case insensitive.
 * [SERVER] Make server answer 204 http status code for empty search
 * [PACKAGING] Made CI build deb packages.
 * [SERVER] Add a way to prevent taskbar and external link bloquer at article
   level.
 * Fix meson file to be compatible with meson 0.45
 * [SERVER] Update search requests to use pageStart/pageLength instead of
   pageStart/pageEnd arguments.
 * [SERVER] Set a fixed favicon size in the main page.
 * [SERVER] Refactor the response system code to better handling future new
   libzim api.
 * Fix segmentation fault around exchange with aria2 process making
   kiwix-desktop crash at exit.

kiwix-lib 9.3.1
===============

 * Fix handling of samba path on windows.
 * Do not include `kiwix_config.h` in public header.
 * Fix compilation with libmicrohttpd v0.97.1
 * Increase default test timeout to 160seconds/test.
 * Add automatic debian packaging.
 * Use non-minified version of jquery-ui.js
 * Pass `-latomic` compile option for sh4 architecture.
 * Make mesion install `kiwix-compile-resources` man page.

kiwix-lib 9.3.0
===============

 * Add a thread safe method to search suggestions.
   Old methods are now deprecated.

kiwix-lib 9.2.3
===============

 * Add test on byte-range
 * Fix compilation on bionic and windows.
 * Allow building using debian packaged kainjow-mustache
 * Pass `-latomic` compile option for architectures that need it

kiwix-lib 9.2.2
===============

 * Fix handling on empty content in byte range management (wrong assert)

kiwix-lib 9.2.1
===============

 * Fix support of byte range request.

kiwix-lib 9.2
=============

 * Add tests
 * Refactoring server code.
 * [SERVER] Add HEAD, Etag and If-None-Match support.
 * [SERVER] Compress opds catalog answers.

kiwix-lib 9.1.2
===============

 * Do not use the pathToSave if it is empty.

kiwix-lib 9.1.1
===============

 * Fix the detection of the dataDirectory on windows.

kiwix-lib 9.1.0
===============

 * [JAVA] Add a method to get the size of an article.
 * Add a new method to the libray to get the book by path.
 * Add a option to make the server blocks external link.
   Links are intercepted by js an redirected to a "portail" page.
 * [ODPS] Correctly handle book's articleCount and mediaCount.

kiwix-lib 9.0.1
===============

 * [JAVA] Use a long to store the offset of an article in the zim file instead
    of an int.

kiwix-lib 9.0.0
===============

 * [OPDS] Correctly set the id of the OPDS stream.
 * [OPDS] Do not try to filter the catalog if no filter field is given in the
   request.
 * [WINDOWS] Correctly convert path to wide chars when opening the library.xml
 * [LIBRARY] Remove the function the read file using a native path.
   All path must be utf8, no need to pass a native path along the utf8 path.
 * [TEST] Fix tests using the main function of gtest instead of custom one.
 * [CI] Move to github CI instead of Travis.
 * The `Book::update` method always update the book's fields. Even if they are
   not empty.
 * [JAVA] Add wrapping around the library manager (opds parsing)
 * [ARIA2] Add api option to start download with option (destination folder)
 * [OPDS] Fixes about opds parsing, generation (missing attributes)
   and requesting (server)
 * Add methods on `Book` to get specific tag values (was on `Reader` only)
 * Add flavour attribute to `Book`
 * Fix opensearch description.
 * Trust the given library.xml (by default) instead of reading the value from
   the zim files.
 * [OPDS] Be able to filter the content by name or size.
 * [WINDOWS] Fix launching subcommand when there is spaces in the path.

kiwix-lib 8.2.2
===============

 * Improve a few compilation scripts

kiwix-lib 8.2.1
===============

 * Reintroduce kiwix-serve taskbar

kiwix-lib 8.2.0
===============

 * More debug information if aria2c command fails
 * Allow to set kiwix-serve port
 * Better (dead) bookmarks mgmt

kiwix-lib 8.1.0
===============

 * Fix pathTools manipulation.
 * Add missing implementation of getArticleCount and getMediaCount on android.
 * Correctly convert windows path to utf8.
 * Add code coverage in the CI

kiwix-lib 8.0.1
===============

 * Fix join function

kiwix-lib 8.0.0
===============

 * Add new methods to get all (and new) metadata from the zim file.
 * Add methods to get the value of a specific tag.
 * [API Change] Convert tags value to the new convention.
 * [API Change] Rename `getMatatag` method to `getMetadata`
 * [ABI Change] Correctly detect executable path in appimage.

kiwix-lib 7.0.0
===============

 * [API break] Add a argument to kiwix-serve to specify the library to use.

kiwix-lib 6.0.4
===============

 * Fix HTML rendering of the search result if there is no result.
 * Do not crash at html rendering if request ask for 0 results (start == end)
 * Correctly find the executable path if we are using AppImage

kiwix-lib 6.0.3
===============

 * force one column suggestion in kiwix-serve suggestions
 * fix fulltext search link in suggestions
 * UI fixes in kiwix-serve rendering

kiwix-lib 6.0.2
===============

 * Correctly set the groupId in the pom file.

kiwix-lib 6.0.1
===============

 * Generate the pom file for android/maven

kiwix-lib 6.0.0
===============

 * Move the server code in kiwix-lib (from kiwix-serve).
 * Add unit test on regex functions.
 * Fix computerAbsolutePath (thread safe, memory leak).
 * Correctly set the book's path as valid if we construct the book from a
   reader.
 * [JNI] Add a method to know if a article is a redirection.
 * Do not embed the gtest dependency.
 * [JNI] Add a constructor to JNIKiwixString.
 * Change order of search of the favicon urls.
 * Clean a lot of unecessary includes in headers. (potential "API break")

kiwix-lib 5.2.0
===============

 * kiwix-serve integration (as a seperated process).
 * Fix crash in the suggestion search.
 * Better API to filter the library books.
 * New kiwix-lib application for android. (.aar)
 * Use ReLinker to link with libkiwix.so in android.
 * Correctly set the verbosity of zim search.

kiwix-lib 5.1.0
===============

 * Add function to pause, resume and stop downloads.
 * Add zim's tags in the opds stream.
 * Addapt to new libzim 5.0.0 API.

kiwix-lib 5.0.0
===============

 * Remove error message when trying to open an wrong zim file.
 * Rewrite `makeTmpDirectory` to not use uuid functions on windows.
 * [API break] Remove `getNetworkInterfaces` and `getBestPublicIp`.
 * Remove rpath
 * Detect infinite (and too long) redirect loops.

kiwix-lib 4.1.0
===============

 * Allow the library to be filtered by tags.
 * Fix language mapping.
 * Update README about mustache dependency.

kiwix-lib 4.0.1
===============

 * Fix "maybe uninitialize variable" issue.
 * Ensure path are stored correctly (absolute path) in the library.
 * [CI] Use the new deps archive xz

kiwix-lib 4.0.0
===============

 * [API break] Remove support for external index.
 * Move to the mustache templating system instead of ctpp2.
 * Make meson.build works for meson>=0.43.0
 * [API break] Move the basic tools from the `common` directory to `tools`.

kiwix-lib 3.1.1
===============

 * The OPDS feed book's date must be the date of the book, not the date of the
 feed generation.
 * Convert the standard opds date to our format (YYYY-MM-DD)
 * Remove duplicate language attribute in the libxml dumper.
 * Create the datadirectory to not fail to write a file in a non-existent
   directory

kiwix-lib 3.1.0
===============

 * Add a method to get the favicon url of book (if available).
 * Move dump code of library.xml in a specific class.
 * Add a first support to bookmarks

kiwix-lib 3.0.3
===============

 * Add the 'en' language to the mapping alpha2-code ('en') to alpha3-code
 ('eng').
 * Correctly write the 'ArticleCount' and 'MediaCount' in the library.xml.
 * Correctly fill the book size for the zim file size.
 * Fix launch of aria2c.

kiwix-lib 3.0.2
===============

 * Use the correct path separator when computing relativePath on Windows.

kiwix-lib 3.0.1
===============

 * Small fix about parsing the opdsStream.

kiwix-lib 3.0.0
===============

 * Change the downloader to use aria2 using a separated process (with rpc)
   instead of using the libaria2. This simplify a lot the link process to
   libaria2 on Windows.
    - kiwix-lib doesn't depend on libaria2 anymore.
    - kiwix-lib now depends on libcurl.
 * [API break] Library class API has been updated :
    - Books are referenced by id, not index. A lot of methods have been
      updated this way.
    - Books "list" is now private.
    - There is no more "current" book.
    - listBooksIds's filters have been updated.
 * [API break] Book class API has been updated :
    - Move the definition of Book in `book.h`.
    - Use getter/setter methods instead public members.
    - Size (getSize/setSize) is now returned in bytes, not kB.
    - Dependending of how the book has been initialized (opdsfeed), the
      faviconUrl may be stored in the book, the favicon being downloaded when
      using `getFavicon`.
    - The path (and indexPath) are always absolute path.
    - Book has now a downloadId, corresponding to the aria2 download id (if
      exists)
  * [API break] Manager class API has been updated :
    - The manager is mainly use to fill a Libray from a "library.xml" file or
      opds feed. Other operations (has removeBookById, setBookPath, filter, ...)
      have been removed.
    - The manager use a intermediate class (LibraryManipulator) to add book to
      the library. This dependency injection allow caller code to hook the add
      of a book to the library.
    - The manager work on a existing Library. It doesn't how a internal
      Library.
  * [API break] OpdsDumper class API has been updated :
    - dumpOPDSFeed method now take the list of bookIds to dump instead of
      dumping all books in the library.
    - OpdsDumper can now dump openSearch result information (total result
      count, start index, ...).
  * [API break] Common tools API has been updated :
    - `base64_encode` and `base64_decode` take std::string as arguments.
    - New `download` function in networkTools.h using libcurl.
    - New `getDataDirectory` function in pathTools.
    - Better `beautifyInteger` and `beautifyFileSize` functions.
    - New `nodeToString` function serializing a pugi::xml_node to a string.
    - New `converta2toa3` function to convert alpha2 language code to aplha3
      language code.


kiwix-lib 2.0.2
===============

 * [Android] Forward c++ errors message de Java world.
 * Follow redirection of favicon.
 * Make aria2 dependency optional.
 * Inculde unistd.h only on unix platform.

kiwix-lib 2.0.1
===============

 * Fix parsing of url.
 * Remove unused static resources.
 * Correctly decode reserved characters in URLs.
 * Explicitly use icu namespace to allow use of packaged icu lib.

kiwix-lib 2.0.0
===============

 * Introduce a new API to retrive content from a reader.
   * Introduce the `Entry` class.
   * Reader's methods return an `Entry`.
   * Content and other information can be retrieved from the `Entry`.
   * Older Reader's methods are depreciated.
 * Add an `OPDSDumper` class to dump a whole `Library` as an OPDS feed.
 * Add a tool function to get the content of a file.
 * Add a tool function to create a tempory directory.
 * Add a `Downloader` class to download a file.
 * Allow the manager to populate a `Library` from an OPDS feed.
 * Try to locate libctpp2 in default system libdir and then fallback in 'lib'
   directory.
 * Build kiwix-lib setting RPATH.
 * Build kiwix-lib without warning (werror=true)
 * Build kiwix-lib on macos.

kiwix-lib 1.1.1
===============

 * Correct the name of kiwix-lib (from `kiwixlib`) in meson.build to generate
   dist archive with the correct name.
 * Libzim version need to be at least 3.2.0

kiwix-lib 1.1.0
===============

 * Allow for more than 70 search result per page in html results rendering
   (kiwix/kiwix-tools#92)
 * Add a small api to do geo queries.
 * Add multi-search support in the JNI (#67)
 * Add an API to get only one part of an article.
 * Add an API to get direct location of an article content in the zim file.
 * Improve urlencoding
 * Fix pagination in html results rendering.
 * Compile using gcc-5 on Travis.
 * Allow JNI to access search snippets.
 * JNI throw an exception instead of returning an invalid object if something
   goes wrong.
 * Add doctext documentation. (#116)
 * Various bug fixes.

kiwix-lib 1.0.0
===============

 * Correctly regenerate template resource using cttp2c at compilation time.
 * Suggestion use xapian database when available
 * Support multi-zim search in kiwix-lib (a search can now search on several
   embedded database in zims in the same time)
 * Fix some wording
 * Fix license issues
 * Add out argument to jni getContent* method to get the title of article in
   the same time we get the content
 * Rename `compile_resources.py` script to `kiwix-compile-resources`
 * Use static lib when building for android or in "static mode"
 * Make the ResourceNotFound exception public

kiwix-lib 0.2.0
===============

 * Generate the snippet from the article content if the snippet is not
 directly in the database.
   This provide better snippets as they now depending of the query.
 * Use the stopwords and the language stored in the fulltext index database to
 parse the user query.
 * Remove the indexer functionnality.
 * Move to C++11 standard.
 * Use the fulltext search of the zimlib.
   We still have the fulltext search code in kiwix-lib to be able to search in
   fulltext index by side of a zim file. (To be remove in the future)
 * Few API hanges
   * Change a lot of `Reader` methods to const methods.
 * Fix some crashes.
