Re-commiting schema.rb file

Apparently we should have it under version control
http://stackoverflow.com/questions/6450263/what-is-the-right-approach-to-deal-with-rails-db-schema-rb-file-in-git#6450396
Bugfix. Indentation error was causing alert callbacks to fail.
Added more Devise support.

Added devise to Gemfile and Gemfile.lock
Added flags as per Devise instructions to the rest of the files.