Orphans UI upgrade + initial integration with larger Admin UI

* orphan controller renamed to organization_reports controller
* user controller renamed to user_reports controller
* js is now included as needed by views, rather than globally
* admin accounts see extra (Organizations, Users) dropdowns in global navbar with links to various reports (only two reports have been implemented)
* orphans UI has table specific toolbar that:
  * sticks to the top after it's been scrolled past
  * has a button to generate users for all organizations selected
  * has a button to select all/none
* orphans table:
  * has check boxes instead of buttons
* Tests: cuke features, controller specs, view specs (except for orphans table), jasmine specs
  * selected rows return color-coded responses