Added memcached into client.
Added caching for home page.
Added caching for some interfaces to MusicBrainz API (ones that take ids).
Added docstrings.
Removed unused "release" argument from browse_release_groups().
Added caching for release groups browser.
Removed limit parameter from artist page.
Moved colon from namespace into cache key generator.
Making sure that review_count is being updated.
Merge branch 'memcache' into stage1