Created service that can be started and stopped from a button in PassageFragment.
Service plays sample mp3 file OK.
Created ongoing notification for foreground service.
WIP: Pulled search activity from mp3 plugin.
Hard coded switch statement with passageId:mp3 path reference.
WIP: Hacked passageId passing into passage fragment.
WIP: Pass MP3 path into service start request.
WIP: Psalm 119 was missing from case statement, so numbering was out.
WIP: Abstract mp3 search mechanism.
WIP:Standardise creation of content object.
WIP: Refactor: Rename ContentDescriber classes.
Rename ContentDescriber to ContentLocator for clarity.
Tidy shared prefs.
WIP: Rationalise Mp3ContentLocator.
WIP: Crudely converted to use AsyncTask for Mp3ContentLocator search
WIP: Introduce Mp3ContentLocator into recursive search.
WIP: Rewritten search function.  Needs a tidy, but gives the illusion of working.
WIP: List any mp3 sets found.
WIP: Themed search activity.
WIP: Hack: Pasted PortionArrayAdapter into ContentLocationActivity to list found mp3 content.