blacklight-core seems unnecessary. move files back to the main blacklight gem.
generate blacklight-bootstrap3 gem into the application
fix rspec test runner for blacklight-bootstrap3 gem
fix up search form
use panels for document show tools
fix pagination widget
fix sort and per page widgets
fix header
use a bi-level navbar; one for search actions, one for branding and user actions
mostly fix facets display
hidden-phone is now hidden-xs
use a button group for displaying constraints
fix user util links alignment
wrap sort and per-page widgets in a common container
fix page links widget styling
align document prev/next links with show tools header
use bootstrap buttons on search history
DRY search results spec