Added some info about issue #70
typo fix
Merge pull request #71 from scaryguy/master

Added some info about issue #70
Add bang/boolean methods to Figaro.env

The plain methods will now return nil (just like ENV). The bang method
will raise an error if the key is not found. The boolean method will
return true or false for whether the key exists.
Make Figaro::Env respond to proxy method appropriately
Change Figaro.env to a convenience method for Figaro::ENV
User double rather than mock
Refactor Figaro configuration loading into an application class
Allow the Figaro application path and environment to be changed
Restructure Rails-specific hooks
Extract Rails-specific behavior out of Figaro::Application
Introduce swappable backends, paving the way for other frameworks
Target Ruby 1.9.3+
Rescue configuration file parsing errors of all types

This also corrects an incorrect assumption that the YAML::Error class
exists in Ruby 1.9.3 when using the Psych YAML engine.
Use Ruby 1.9 hash syntax
Don't exclude Ruby 2 on Rails 4
Require Rails >= 3.0.3 in development to play nice with Bundler
Empower Figaro to set configuration values that it's already set

This is appropriate in a situation where a process like Rake may
initialize the Rails process twice, in two different environments. The
second initialization should trump the first.
Move Rails integration testing to RSpec
Ditch Cucumber