Upgrade prizm gem

Fix css download feature

Rename styles controller to bootstrap

Move bootstrap sass initialization to its engine

Remove legacy less bootstrap

Dynamically compile css onload

Upgrade to bootstrap 3.3.4

Reorg compilation code into lib

Upgrade to bootstrap 3.3.4 and render sass server side

Remove require RMagick

Upgrading to Cedar-14

Add rails_12factor

Add bin files

Specify ruby version

Upgrade to rails 4.2.1