Add initial changelog composed from GH releases

CHANGES.md

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+# Change Log
+All notable changes to this project will be documented in this file.
+This project adheres to [Semantic Versioning](http://semver.org/).
+
+## [0.11.0] - 2015-11-30
+### Added
+* GetDrawable{Width,Height,Size} Window functions (@csoren)
+* Point and Rect less-than operators and std::hash support
+* Rect: more methods, wider constexpr support
+
+### Fixed
+* Rect documentation fixes
+* Unused variable warnings (@vladimirgamalian)
+* Incorrect return value handling in Surface::SetClipRect
+
+## [0.10.0] - 2015-10-14
+### Fixed
+* Improved cygwin compatibility
+* Missing SDL2pp::SDL methods
+* Return and argument types to match upstream API (SDL2pp::Window, SDL2pp::Font, SDL2pp::Mixer)
+* Infinite loop in StreamRWops
+* Documentation improvements
+* Build without SDL_mixer support
+
+## [0.9.0] - 2015-09-07
+### Added
+* SDL_mixer support
+* more Point operators: remainder; multiplication, division and remainder counterparts which take another Point
+* Point and Rect better inlining and constexpr support
+* Surface::GetFormat()
+* Texture::Update() taking pixels from Surface
+
+## [0.8.2] - 2015-07-28
+### Fixed
+* Add missing Font::IsGlyphProvided implementation (@vladimirgamalian)
+* Fix glyph rectangle calculation in Font::GetGlyphRect (@vladimirgamalian)
+
+## [0.8.1] - 2015-06-29
+### Fixed
+* Use correct type flags in RWops::Size, fixing mingw build (@vladimirgamalian)
+
+## [0.8.0] - 2015-06-10
+### Added
+* Render::Copy() overload which takes target Point instead of a Rect
+* Render::FillCopy() which fills target rect with repeated texture
+* Improved UTF-16 font rendering support
+* CMake module file
+
+## [0.7.1] - 2015-03-27
+### Fixed
+* Miscellaneous style, documentation and build system fixes
+
+## [0.7.0] - 2015-01-22
+### Added
+* More Texture, Renderer (both complete now) and Window methods
+* Point::Clamp(), Point::Wrap(), Rect::Extend(), Rect::IntersectLine()
+* Stream output for Point and Rect
+
+### Changed
+* Most setters now return reference to self to allow method chaining
+* Exception now stores both SDL error and name of function which caused it; what() message now contains these both, so SDL2pp exceptions may be conveniently handled with ```catch (std::exception&)```
+* pkg-config file now provides SDL libraries along with SDL2pp, so users don't need to care of SDL2 flags in addition to SDL2pp's.
+
+### Removed
+* Deprecated Point and Rect methods (Null(), IsNull(), Get())
+
+### Fixed
+* Use move, not copy in constructing RWops from CustomRWops-derived class
+
+## [0.6.0] - 2015-01-11
+
+### Added
+* Doxygen documentation for the whole library
+* Wrapper over SDL_image initialization/deinitialization
+* SDL_Surface wrapper with SDL_image support; it's now possible to construct Texture from Surface
+* Bunch of constructors from existing SDL objects (e.g. Window(SDL_Window*)) for Point, Rect, Window, Renderer, Texture
+* Complete SDL_ttf support
+* Consistent GetWidth()/GetHeight()/GetSize() for Texture and Surface
+* More operators, constructors and methods for Point and Rect
+
+### Fixed
+* Added proper error checking for SDL_image-using Texture constructors
+* Multiple fixes in build system
+
+## [0.5.2] - 2014-12-30
+### Fixed
+* Added missing include file to installation
+
+## [0.5.1] - 2014-12-27
+### Fixed
+* Potential problems with SDL2 error handling
+
+## [0.5.0] - 2014-12-26
+### Added
+* AudioDevice::LockHandle is now copyable
+* + - += -= operators supported to offset a Rect by a Point
+* Optional class to pass optional values
+* possibility to use c++1y and detection of available useful c++1y features with c++11
+* default argument for Texture::Lock()
+* bunch of Window functions (Maximize(), Minimize(), Hide(), Restore(), Raise(), Show(), SetFullscreen(), SetSize())
+* More granular build options for tests and examples
+
+### Changed
+* Point and Rect no longer have invalid (Null) states and are now directly derived from SDL_Point and SDL_Rect. In places where null states were usable (e.g. usually null Rect would mean "whole area", like in Texture::Lock()), Optional is now used. Use SDL2pp::NullOpt instead of SDL2pp::(Point|Rect)::Null().
+
+## [0.4.0] - 2014-12-19
+### Added
+* StreamRWops which work with STL streams
+* AudioDevice and Texture LockHandle's now have empty constructors, so you may create them in one place and initialize later
+* (Read|Write)(LE|BE)(16|32|64) RWops functions
+* pkg-config file
+
+### Changed
+* Plain ContainerRWops is able to work with both const and non-const containers, so ConstContainerRWops class is no longer needed
+* Audio callback is now tied to AudioDevice, not AudioSpec. This is cleaner and easier to use.
+
+### Fixed
+* Exception safety when changing audio callback
+* Make -Werror conditional for user convenience
+
+## [0.3.0] - 2014-11-30
+### Added
+* SDL audio functionality
+
+### Fixed
+* Proper self-assignment handling in move assignment operators
+
+## [0.2.0] - 2014-11-25
+### Added
+* Getters for texture properties (width/height/format/access)
+* Texture locking
+* Rect method to check if it contains a Point
+
+## [0.1.1] - 2014-09-09
+### Added
+* Installation
+* Library version
+
+## [0.1.0] - 2014-09-05
+### Added
+* SDL2_image support
+* RWops
+* New Renderer methods: SetClipRect(), SetScale(), SetViewport(), TargetSupported()
+* New SDL methods: WasInit(), InitSubsystem(), QuitSubSystem()
+* Basic MSVC support
+* Arithmetic operators for Point
+
+### Fixed
+* GUI tests which are sensible to OpenGL implementation behavior are no longer fatal
+
+## [0.0.2] - 2014-02-11
+### Added
+* Tests
+* New Window methods: GetSize(), GetWidth(), GetHeight(), SetTitle()
+* New Renderer method: ReadPixels()
+* Point and Rect setters and comparison operators
+
+## [0.0.1] - 2014-02-01
+### Added
+* Initial release supporting basic Window, Renderer, Texture, Rect and Point handling.