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
Add an initializer with reservation_period and checkout_period settings
Add the remind_before setting
Add the strikes_for_ban setting
Remove Ruby 1.9.3 from the Travis config
Merge branch 'master' into settings
Fix the build by reverting part of commit c8d5c0e
Merge branch 'master' into settings
Add the shelves setting (currently empty)
Add descriptions to all settings in the settings initializer
Use block syntax for setting values in the settings initializer