using tinytag to get music metadata instead of loads of other libs
merging latest devel changes into tinytag to keep compability.

Merge branch 'devel' into tinytag

Conflicts:
	cherrymusicserver/metainfo.py
Merge pull request #420 from Lord-Simon/devel

Added quickstart, changed setup.py, changed manifest, changed default image engine to google
sorting user list by last time online
Merge branch 'devel' of github.com:devsnd/cherrymusic into devel
show default images when online image fetching is deactivated, fixes #417
implemented automatic scrolling of playlist when adding new track or next track is being played, closes #409
always showing currently playing track in title and progress bar, even though playlist is empty, closes #433
fixing albumartfetcher not working with amazon anymore
fixed google image search for albumartfetcher
show parent folder was hidden, fixed #435
fixed "show parent folder" not working for files in the basedir
fixed tab title showing "undefined" when no track is playing
automatically scrolling to top when loading a directory, to show progress, closes #426
Merge branch 'devel' into tinytag
removed test samples of tinytag
removed audioread as it will be replaced by tinytag
updated tinytag to version 0.3.0 which supports mp3 length estimation
removed stagger from cmbootstrap, added tinytag to setup.py, removed --download-stagger option
fixed natural number ordering ruining compact direcory listing for files starting with numbers