Get rid of border on ow playing cover.
draw a separator between albums in list view
get rid of Hash#method_missing patch

a dirty trick, no longer in use.
oops, forgot to un-require hash core_ext.
fix cover padding inside table as it shifted the text.

add a margin on the content of it instead. increase from 3->5px
require that at least 7 items are present to display the cover.

5 doesn't fit anymore.
album tracklist design
some fixes to make the tracklist properly span.

the expanded element needs to have a dynamically increased height,
to push the rest of the items down enough -- as in not to cover
the tracklist.
Libraryviews -> Library
Introduce Artist and Album models.

Several bugs come with this: sorting tracks by album is now
broken, since they get sorted by album id instead of album name.

The Track#artist=, Track#album= and Track#albumartist= methods
are dirty hacks that need to be replaced by a better solution,
models also need tests.
API update

track/:id -> tracks/:id
tracks/all -> tracks/
time -> duration
include track.length
use RABL for API