adds even more styling to views
updates rails to 3.2.11

http://ronin-ruby.github.com/blog/2013/01/09/rails-pocs.html describes
the bugs quite nicely.
fixes minor html issues for experiments#show

has been broken by changing the buttons id when bootstrap classes were
added..
moves secret env vars into an yaml

the configuration now should be located in config/secret_env_vars.yml.
See the .example.yml file for currently used keys.

This file will be automatically loaded at application start.

NEVER ADD THE SECRET FILE TO GIT!

this closes #2