Revert "UI/UX: context 1/3" since tests fail

This reverts commit f9cebb3c07f89a8e5f5880124b7e7493adc419bb.
Remove composite_primary_keys gem (prepare for rails 4.1)

and refactor madek so it doesn't need it
Upgrade gems to rails 4.1.1; require ruby 2.1.1
Revert sass gem version (bundler problem)
Rename search to text_search
One more search
Fix person search
Fix ...
...wip...
Fix
Fix spec
search -> text_search
MediaResourcesFilter search -> text_search