diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index f5c8d170f..3ff2bb333 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-          android:versionCode="10"
-          android:versionName="1.7"
+          android:versionCode="13"
+          android:versionName="1.8"
           package="org.kiwix.kiwixmobile">
 
     <supports-screens
diff --git a/build-android-with-native.py b/build-android-with-native.py
index 907da72ec..6947df8f9 100755
--- a/build-android-with-native.py
+++ b/build-android-with-native.py
@@ -296,6 +296,12 @@ for arch in ARCHS:
         syscall('ln -sf %(src)s %(dest)s/'
                 % {'src': ln_src, 'dest': dest})
 
+        # add a link to android-support-v4.jar
+        ln_src = '%(SDK_PATH)s/extras/android/support/v4/android-support-v4.jar' % {'SDK_PATH': SDK_PATH}
+        dest = os.path.join(os.path.dirname(CURRENT_PATH), 'android', 'libs')
+        syscall('ln -sf %(src)s %(dest)s/' 
+                % {'src': ln_src, 'dest': dest})
+
     # check that the step went well
     if CREATE_TOOLCHAIN or COMPILE_LIBLZMA or COMPILE_LIBZIM or \
        COMPILE_LIBKIWIX or STRIP_LIBKIWIX:
diff --git a/libs/android-support-v4.jar b/libs/android-support-v4.jar
deleted file mode 100644
index 9056828a0..000000000
Binary files a/libs/android-support-v4.jar and /dev/null differ
diff --git a/libs/armeabi/libkiwix.so b/libs/armeabi/libkiwix.so
index f4b28c2c3..42ec616f7 100755
Binary files a/libs/armeabi/libkiwix.so and b/libs/armeabi/libkiwix.so differ
diff --git a/libs/mips/libkiwix.so b/libs/mips/libkiwix.so
index e2cb74413..ada8c119f 100755
Binary files a/libs/mips/libkiwix.so and b/libs/mips/libkiwix.so differ
diff --git a/libs/x86/libkiwix.so b/libs/x86/libkiwix.so
index 5d3194f25..36ab341a1 100755
Binary files a/libs/x86/libkiwix.so and b/libs/x86/libkiwix.so differ
diff --git a/res/raw/welcome.html b/res/raw/welcome.html
index be4d7e132..7fe619766 100644
--- a/res/raw/welcome.html
+++ b/res/raw/welcome.html
@@ -15,12 +15,10 @@
 <div id="content-wrapper">
 
 <section id="step1">
-	<h2><span>1.</span> Download a Content</h2>
-	<p><strong>Kiwix</strong> is an Offline Content Reader, perfectly tailored for Wikipedia. Enjoying Kiwix is just <strong>2 steps</strong> away.</p>
-	<p>Why don't you try our Wikipedia Demo file?</p>
+	<h2><span>1.</span> Download Offline Files</h2>
+	<p><strong>Kiwix</strong> allows to read websites like Wikipedia off-line. Try our 2.4MB Wikipedia demo file containing a few articles about singer <em>Ray Charles</em> from the English Wikipedia:</p>
 	<a class="button" href="http://download.kiwix.org/zim/0.9/wikipedia_en_ray_charles_03_2013.zim">Ray-Charles-Demo.zim</a>
-	<p>It's a 2.4MB ZIM containing a few articles about singer <em>Ray Charles</em> from the English Wikipedia.</p>
-	<p>It's just a sample! Browse <a href="http://kiwix.org/m/">kiwix.org</a> and the <a href="content://org.kiwix.ui/gotohelp">Help</a> to download other contents; like Wikipedia.</p>
+	<p>Offline content is available at <a href="http://kiwix.org/m/">kiwix.org</a> or the <a href="https://en.wikipedia.org/wiki/Wikipedia:Bookshelf">Wikipedia bookshelf</a>. You can create your own books in Wikipedia, refer to the <a href="content://org.kiwix.ui/gotohelp">help</a> for further details.</p>
 	<div class="alert alert-info"><strong>Warning!</strong> This download will take place in your browser. Don't forget to come back to Kiwix once download is complete!</div>
 </section>
 
@@ -31,9 +29,9 @@
 </section>
 
 <section id="step3">
-	<h2><span>3.</span> Open the file up-there!</h2>
-	<p>Click the <span><a href="content://org.kiwix.ui/selectzimfile">Open File</a></span> button in the toolbar up there and select the ZIM file you downloaded. <strong>That's It!</strong></p>
-	<p>Now, Enjoy your content, and take a look at the <a href="content://org.kiwix.ui/gotohelp">Help</a> Page once bored.</p>
+	<h2><span>3.</span> Open the file in Kiwix!</h2>
+	<p>Click the <span><a href="content://org.kiwix.ui/selectzimfile">Open File</a></span> button in the toolbar at the top and select the ZIM file you downloaded. <strong>That's It!</strong></p>
+	<p>Now, enjoy your content, and take a look at the <a href="content://org.kiwix.ui/gotohelp">help</a> page once bored.</p>
 </section>
 
 </div>
diff --git a/res/xml/preferences.xml b/res/xml/preferences.xml
index 29387fa7c..09caa7650 100644
--- a/res/xml/preferences.xml
+++ b/res/xml/preferences.xml
@@ -24,7 +24,7 @@
                 android:key="pref_backtotop"
                 android:title="@string/pref_backtotop"
                 android:summary="@string/pref_backtotop_summary"
-                android:defaultValue="value"/>
+                android:defaultValue="false"/>
 
     </PreferenceCategory>
 
diff --git a/src/org/kiwix/kiwixmobile/KiwixMobileFragment.java b/src/org/kiwix/kiwixmobile/KiwixMobileFragment.java
index cc1082817..338f088ac 100644
--- a/src/org/kiwix/kiwixmobile/KiwixMobileFragment.java
+++ b/src/org/kiwix/kiwixmobile/KiwixMobileFragment.java
@@ -101,7 +101,7 @@ public class KiwixMobileFragment extends Fragment {
 
     private static final String PREF_KIWIX_MOBILE = "kiwix-mobile";
 
-    private static final String PREF_BACK_TO_TOP = "pref_back_to_top";
+    private static final String PREF_BACKTOTOP = "pref_backtotop";
 
     private static final String AUTOMATIC = "automatic";
 
@@ -135,7 +135,7 @@ public class KiwixMobileFragment extends Fragment {
 
     protected int requestWebReloadOnFinished;
 
-    private boolean isButtonEnabled;
+    private boolean isBacktotopEnabled;
 
     private SharedPreferences mySharedPreferences;
 
@@ -158,7 +158,7 @@ public class KiwixMobileFragment extends Fragment {
         requestWebReloadOnFinished = 0;
         requestInitAllMenuItems = false;
         nightMode = false;
-        isButtonEnabled = true;
+        isBacktotopEnabled = false;
         isFullscreenOpened = false;
     }
 
@@ -385,7 +385,7 @@ public class KiwixMobileFragment extends Fragment {
 
             @Override
             public void onPageChanged(int page, int maxPages) {
-                if (isButtonEnabled) {
+                if (isBacktotopEnabled) {
                     if (webView.getScrollY() > 200) {
                         if (mBackToTopButton.getVisibility() == View.INVISIBLE) {
                             mBackToTopButton.setText(R.string.button_backtotop);
@@ -653,7 +653,7 @@ public class KiwixMobileFragment extends Fragment {
         String pref_zoom = mySharedPreferences.getString(PREF_ZOOM, AUTOMATIC);
         Boolean pref_zoom_enabled = mySharedPreferences.getBoolean(PREF_ZOOM_ENABLED, false);
         Boolean pref_nightmode = mySharedPreferences.getBoolean(PREF_NIGHTMODE, false);
-        isButtonEnabled = mySharedPreferences.getBoolean(PREF_BACK_TO_TOP, isButtonEnabled);
+        isBacktotopEnabled = mySharedPreferences.getBoolean(PREF_BACKTOTOP, false);
 
         if (pref_zoom.equals(AUTOMATIC)) {
             setDefaultZoom();
@@ -674,7 +674,7 @@ public class KiwixMobileFragment extends Fragment {
         webView.getSettings().setBuiltInZoomControls(true);
         webView.getSettings().setDisplayZoomControls(pref_zoom_enabled);
 
-        if (!isButtonEnabled) {
+        if (!isBacktotopEnabled) {
             mBackToTopButton.setVisibility(View.INVISIBLE);
         }