android: Target latest SDK version

src/frontends/android/AndroidManifest.xml

@@ -20,7 +20,7 @@
     android:versionCode="20"
     android:versionName="1.3.4" >
 
-    <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="18" />
+    <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="19" />
 
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

src/frontends/android/project.properties

@@ -8,4 +8,4 @@
 # project structure.
 
 # Project target.
-target=android-14
+target=android-19