How to handle routing errors and errors in general rails

http://techoctave.com/c7/posts/36-rails-3-0-rescue-from-routing-error-solution

Twitter Bootstrap modal rails delete button not working

http://stackoverflow.com/questions/12429066/twitter-bootstrap-modal-rails-delete-button-not-working?rq=1

Rails migration

http://stackoverflow.com/questions/753919/run-a-single-migration-file