created layout and menu
basic version of SoundActivity
[SoundActivity] list item according to mockup
refactored layout
enlarged menu
use of new list item
bugfix
prepared dialogs
added context menu
refactor soundlist item
context menu on longpress
pause playing sound
refactoring
diable not implemented option items
fixed bug converning file deletion
actionMode for delete
actionMode for rename
Merge branch 'master' into issue#98
some changed concerning master integration
added spinnerAdapter