DLTP-264 Classify works by college and department

Adding select2 jquery plugin and using it in department multiselect
Reworking on select dropdown genernation
Add js to add indent for each child
Adding spec to make sure selected options are displayed on edit page
Adding organization to generators so that new work type will get that type
Fixing bugs in getting organization

Reworking on organization solrizing details and new facets for departments and affiliation
Add department hierarchy, label and parents to solr document
Facet on affiliation and department

removing some of the debug lines
Merge pull request #77 from ndlib/DLTP-264

DLTP-264 Classify works by college and department