Update Gemfile.lock
Add the parallel_tests gem
Revert "Add the parallel_tests gem"

This reverts commit 0c70835cf7c5f34b0aa468339b5ec0efc2609370.
Remove therubyracer and libv8 from the Gemfile
Added omniauth initializer now that it uses environment variables
restrictions
Add a JavaScript runtime section to the readme
Merge branch 'performance'
Fix a typo in an attribute name and only check for restricted books that exist
Update README.md
Fixed some rubocop things
Remove Ruby 1.9.3 from the Travis config
Merge branch 'master' into refactor