Also cache covers from playqueue into covers-scaled


git-svn-id: http://cantata.googlecode.com/svn/trunk@4304 b1e49159-3266-923f-9c3e-04f16369770a
Reduce memory usage, by storing album covers in a cache - and using this for display.


git-svn-id: http://cantata.googlecode.com/svn/trunk@4305 b1e49159-3266-923f-9c3e-04f16369770a
Remove unused var


git-svn-id: http://cantata.googlecode.com/svn/trunk@4306 b1e49159-3266-923f-9c3e-04f16369770a
Fix display of online-service track album-artist in copy dialog.


git-svn-id: http://cantata.googlecode.com/svn/trunk@4307 b1e49159-3266-923f-9c3e-04f16369770a
Only save albumartist tag in XML cache file if library supports this tag.


git-svn-id: http://cantata.googlecode.com/svn/trunk@4308 b1e49159-3266-923f-9c3e-04f16369770a
Fix infinite loop when set to not use cover


git-svn-id: http://cantata.googlecode.com/svn/trunk@4309 b1e49159-3266-923f-9c3e-04f16369770a
Dont save to cache, or read from, if size<4


git-svn-id: http://cantata.googlecode.com/svn/trunk@4310 b1e49159-3266-923f-9c3e-04f16369770a