2.5
Android 5.0 target version, minimum version is 4.1
Material UI (Android 5.0+)
Russian translations
Moved to Gradle build system
Fixes in native C code for building with modern Android NDK
Updated and cleaned up resources and icons
Rewritten obsolete parts of the code, fixed some bugs
2.5-2
Action bar display fixed in emulator mode (swipe from up to down in the status bar area)
Update Gradle version