Volume levels. Music in game changed.
Sequence random play music.
Merge remote-tracking branch 'refs/remotes/origin/dev_main' into dev_sound
Merge remote-tracking branch 'refs/remotes/origin/dev_main' into dev_sound

Conflicts:
	res/values/integer.xml
Merge remote-tracking branch 'refs/remotes/origin/dev_main' into dev_sound
Merge pull request #60 from dmedov/dev_sound

Dev sound