Use the TagReaderClient to tag the files in the CD ripper instead of
using Taglib directly.
Capture log messages from the transcoder.
Run RipCD::TagFiles in a background thread.
Keep working until tagging is complete.
Give functions a more verbose name.
Send album artist to Last.fm
Merge pull request #4363 from diogocp/master

Send album artist to Last.fm.  Fixes #4354
Merge pull request #4364 from TheUbuntuGuy/master

Add icons to extras: hypnotoad, kittens, enterprise.  Fixes #1601
Save tags using async calls.
Merge pull request #4344 from paperbagcorner/fix-tagging

Improve the tagging and the track information handling in the CD ripper
Revert "Send album artist to Last.fm"

This reverts commit d7ec8b9103ffdbbe0105e98707a103914c0a8c48.
AlbumArtist seems unsupported by newer liblastfm.
Don't start ripping unless the user has selected some tracks.
Merge pull request #4365 from paperbagcorner/empty-riplist

Don't start ripping unless the user has selected some tracks