Updates gems for rails 2.1.4
Also adds letter_opener for development, because it's super useful.
Updates rspec to the last very of the 2 series so it gives all the
deprecation messages in case someone wants to upgrade to Rspec 3. But
why would you?
Fixes specs so they pass
Also using Poltergiest in place of capybara-webkit as it's pretty flakey
these days
Null value for to in changesets was causing sql error. Now it's zero if null
js for Locales was blowing up in 4.1
* Moves the static locales stuff into application.js
* Adds the couple of config vals for Locales into a script call in the
header
* Removes /locales.js from the layout. It was blowing up
Adds letter_opener stuff in development. It's so useful to have
Tell Travis to use Ruby 2.1.2 2.0.0 is for losers
Merge pull request #230 from dstockdale/rails-4.1.4

Rails 4.1.4
Update links.