experimental track / album / artist based genre stuff per item
removed debug messages (i should really use git more)
cleaned up, removed debug
Added track to source options in the docs.
Configurable list of patterns which will be ignored when pruning empty directories.

* util.prune_dirs modified to accept glob patterns as clutter to determine emptiness.
* config option, 'clutter' (a list of filenames/glob patterns)
* ImportTask.prune passes this option's value to prune_dirs.
Merge pull request #93 from steinitzu/prune-dirs-clutter

Customizeable clutter when pruning directories
changelog, docs, and style tweaks for #93
qbugfix
reverted de-couling of album.genre and item.genre
Adds support for Replay Gain tags on MP4 files

 * Stores Replay Gain info in MP4 files using the format
   '---:com.apple.iTunes:replaygain_*' which is used by FB2K
Fixes a typo. Whoops.
Ugh, more typos.
Merge pull request #94 from daveisadork/m4a-replaygain

Adds support for Replay Gain tags on MP4 files
changelog for #94
correct changelog credits for @mrmachine
echonest_tempo: skip when missing artist or title
Merge pull request #92 from pscn/master

lastgenre improvements
Python style and legibility cleanup for #92
changelog for #92
remove verbose option (#92)

The lastgenre command should always log what it's doing so the user can see
the progress being made. If you really don't want any output, just pipe to
/dev/null.