Rails updated to 3.2.13
Updated more gems ( client side validations, coffee-script, etc)
Added scipt to generate gem changelogs and version diff. Added diff generated by this script + some remarks about not updated gems and their dependencies.
Updated all gems that could be updated. Updated info in a bundler-gem-diff.
Simple_form version reverted to 2.0.4. Was set to 2.1.0 by error.
Added bullet gem for n+1 problem monitoring.
Added link 'to top' for tariffs index when user scrolled down page.