[Client] First minor improvement to text and inform display
[libGDX-Input] Support for entering ALT-Keycodes
[Client] Changes at displaying chat bubbles
Merge remote-tracking branch 'Illarion/develop' into develop
[Engine-libGDX] Changed handling of alt+numpad values
[Client] Chat bubble tracks avatar

The speech bubble is now staying over the walking avatar even if it
moves.
[Client] Don't update the chat bubble position if the avatar is invalid
[Client] Only display "..." in the bubbles in case NPCs are talking
Set +x for gradlew
[Client] Hide older message bubbles in case they overlap a newer one
[Engine-Nifty] Forward events properly if the alt key is pressed
[Client] Tried to improve the logging output during the walking
Merge branch 'develop' into feature/new_lua_require