Make the "refresh database" actionbar button's label more explicit
Refresh MPD database button back in settings

Users got used for this to be in the settings. Discoverability of the button in FSFragment is poor, so stick it in here too.
Fix lousy translation
widgets: Convert to UNIX line endings.
widgets: Remove duplicated code between widgets.
widgets: Fix a few java docbook warnings.
widgets: Remove unused individual widget updating.

Remove it for now, readd if it becomes useful in the future.