Upgrade to Rails 3.2.10

 - there was a SQL injection bug in 3.2.8
 - also fixed the version of therubyracer, to avoid dependency on native
   v8.
 - we need therubyracer to build bootstrap stuff.
Fix version of Twitter bootstrap to avoid dependency hell.

Bootstrap 2.1.9 depends on therubyracer 0.11 which depends on native v8
which requires root access.
Merge pull request #78 from pozorvlak/upgrade_rails

Upgrade rails