Upgrade Refinery CMS to v2.1.1.

This also upgrades the following major packages:

rails => 3.2.17
jquery-rails => 2.3.0
refinerycms-blog => 2.1.0
refinerycms-inquiries => 2.1.0
refinerycms-i18n => 2.1.0
Add migrations to complete upgrade.
Drop obsoleted boostrap classes from stylesheet.