Updated components to communicate through wreqr commands. Added facet view.
Major updates to all Solr components.
Updated Solr components and added support for NodeSet storage and retrieval.
Added support for independent data and annotation query.
Added clone() for deep-copying of queries.
Added Solr pivot matrix.
Updated Solr components.
Minor cleanup.
Removed old pivot matrix code.
Extended NodeSet model to store both the Solr query itself and the query components used by the JavaScript client for serialization and deserialization.
Code clean up.
Merge branch 'solr_components_feature' into develop
Merge branch 'develop' of github.com:parklab/Refinery into develop

Conflicts:
	refinery/static/js/refinery/contents.js
	refinery/templates/core/data_set.html