Improved file deletion from MediaStore
Fixed FileNameFilter losing spans.
Fixed some MediaStore issues. Added MediaStoreUtils test.
Merge branch 'master' of github.com:Doctoror/PureFM
Now uses StorageHelper to get storage volumes and file system types.
Improved bookmarks displaying and fixed saving of bookmarks if drawer was not closed and activity stopped.
Fixed empty view not pullable.
StorageHelper: now doesn't include StorageVolumes that doesn't start with pimary volume first directory.
Replaced shit code with proper string formatting and plurals.
Removed cancelable ProgressDialogs with AlertDialog and cancel button.
Default theme is now black. Fixed instrument tests and lint. Fixed canceling in OperationsService. Progress dialogs are now shown according to service stare instead of task lifecycle.