implement artist coversearch with lastfm results
add coverartextdb to support artists in coverart browser
various cleanups to work with python2
fix interface hang issues when downloading all artist covers
remove unneeded files
cleanup
remove unnecessary gio scheduler since this causes a hang in python3
remove hard dependency on mutagen.  Also ensure that mutagenx is an optional supported library.  Fix for embedding coverart where the album doesnt actually have coverart
make similar mutagen and mutagenx changes for the default album-search routines
tweaks to ensure that python3 syntax is supported for mutagenx embedded picture routines
updated README
Update README.md
fix export and embed pictures for mutagenx
Merge branch 'artist' of https://github.com/fossfreedom/coverart-search-providers into artist
fix for mutagenx issue 23 - oggvorbis embedded artwork
latest README
bump version to 1.0
Merge branch 'artist'