src/xml: added stubs for contextual action mode in main activity
src/xml/res: added missing iconsm, reorder displayed action items
src: fixed small bug with dir selection
src/xml: overhautl menu for file dialog
src: fixed bug with unselection
src/xml: readd some menu items
src/xml: added close item and fixed bugs
res/xml: updated layout
res/xml: added feature to delete file or directory
src/res/xml: removed some unsuded ressources
src: long click opens directory
src/xml: updated contextual layout, TODO add selected item counter
xml: update layout
src: added number of marked sounds to contextual actionbar
src: added feature to select/deselct all on number of marked clicked
src/xml: added custom title for contextual actionbar
src/xml: more updates to contextual actionbar behaviour
res: added icons for soundcontrol settings
xml: new contextual action for settings
src: enable contextual action for settings + lots of refractoring