Update Android Studio to version 0.8.7
Override the contents of card when you try to move a duplicate card into inbox
Bugfix: Can't replace search keyword when you use ACTION_SEND twice
Replace ArrayAdapter by CursorAdapter at FlashcardActivity
Bugfix: the results for 'b' is strange
Polish existing functions

- Use onUtterance*** callbacks for refine AutoPlay function
- Update app icon (test)
- Remove some TTS settings
- Performance tuning
Fix memory leak on BrowserActivity
Bugfix: navigation bar doesn't show in MainActivity when dismiss soft keyboard by back button
Update design
Replace flashcard's color by white
Change main nav and cards style