Fix album art and playing columns in search dialog
Keep artwork.h out of this pull request
Add group-by section to search header menu
Merge pull request #42 from Lithopsian/search

Column grouping in search box
gitignore upd
Fix gobject_ref assertion
Merge pull request #43 from Lithopsian/search

Fix gobject_ref assertion
coverart: thread safety
Race conditions, pixbuf cache
Sort pixbuf cache for faster retrieval
Dynamic pixbuuf cache size
Use CAIRO_FILTER_BEST for default pixmap
gtkui: separate pixbuf caches for widget and playlist
dynamic callback list, never full
coverart: better handling of missing image file
Merge pull request #44 from Lithopsian/search

Coverart, thread safety, pixbuf cache
artwork: change albumart.org URL again
gtkui: don't flash the default artwork while loading into memory
Merge pull request #45 from Lithopsian/search

More cover art stuff
gtkui: only draw default cover art after lookups have failed