Issue 455
(570) Adds a settings option to ignore symlinks during the media scan.
(4550 Adds a regular expression pattern to exclude in addition to the option
of excluding symlinks.
More code review feedback. Added case-insensitive (and correctly spelled)
option to getAlphabeticalAlbums. Added getAlbumCount() method to AlbumDao.
Moved AlbumUpnpProcessor from getting all the albums and returning a subset
to requesting the subset directly from the dao, as suggested.
DispatchingContentDirectory, broadcasts search capabilities, and removes
an assignment that was not longer necessary.
Also added a couple of comments for clarity on the '- All Albums-' options.
This replaces the existing FolderBasedContentDirectory with a new
DispatchingContentDirectory. The new system then dispatches requests to
subclasses of UpnpContentProcessor, which then handle the requests as
appropriate.
This version also implements a new searchByName method in SearchService,
which is used to provide artist, album, and track search functionality
for the upnp service.
Allen Petersen