Merge pull request #1 from barnabyalter/master

Updated documentation to include institutions
Add :controllers and :models members to Institutions.
Add travis yml file.
Update Institution documentation.
Remove jquery-rails dependency.
Add build status.
Ruby 1.8.7 is unsupported.
Update Ruby versions tested and travis config for those tests.
Update sqlite3 jruby gem.
Update tests for Ruby 1.8.7
Update NYU PDS handle.
Update for ruby 1.8.
Test against login.library.
Update .gitignore.
Remove institution and use separate gem instead.
Update Gemfile.
Own it.
Add Gemfile.
Fix bug.
Add badges.