Add some meat to the README.
Some touch-ups to the README.
Send a list containing "unkown" to summary.html if values are unkown

summary.html expects artist, title, release and track number to be
lists. If any of those tags is not a list, it will still access the
first element for printing, which, in the case of unkown values, was
just "[".
Add links back to Musicbrainz Artist, Release and Recording entries
quote artist/title for Tomahawk embedding
Merge pull request #22 from Freso/readme-update

Add some meat to the README.
Merge pull request #25 from mineo/unkown-fix

Send a list containing "unkown" to summary.html if values are unkown
Merge pull request #26 from JesseWeinstein/add_links

Add links back to Musicbrainz Artist, Release and Recording entries
Merge pull request #28 from JonnyJD/quote

quote artist/title for Tomahawk embedding
Add Twitter timeline to front page.

https://dev.twitter.com/web/embedded-timelines
Changed the language to en