Removed results limit parameter from search requests. Made it constant.
Adjusted interface to MusicBrainz to allow more complex requests with includes.
Added external links to release group page.
Implemented basic relationship processor.
Right now it works only with Release Group-URL relationship.
Added support for icons in Release Group-URL relationship.
Adjusted process of new dictionary creation.
Fixed broken link to artist on release group page.
Moved relationship processors into separate module.
Processing is now done with some API requests to MusicBrainz.
Added band members on artist page.
Removed rels argument from some functions in MusicBrainzClient.
Moved client's interface to MusicBrainz into apis package. Old api module is now called server.
Added caching for new functions in MusicBrainz API wrapper.
Merge branch 'cut-limit' into stage1

Conflicts:
	client/critiquebrainz/search/views.py