API changed, so: item.communities, item.collections, item.metadata[0].key/val

Also, added Item owningCommunities, and owningCollections to UI
Changing to newer bootstrap version, adding holder.js. Is responsive
Community has parentCommunities
Collection has parent community. Other pretty improvements to collection
Pretty improvements to item. (Bitstreams to have thumbnails).
Make the view-raw-json, still pretty print
Ask for 1000 items from a collection...
Moved view community.detail into its own folder
Add comm.logo and coll.logo, and display on page