Update README advice for Rails 3.x installation to use current version
…st version: `gem 'forgery', '0.5.0'`
Adding an error message when file was not found during dictionary lookup
My apologies, I'm using a new code editor and forgot to check the defaults!
Let's use more-idiomatic backticks instead.
adding tests to Monetary class, fixing problem with .random in ruby 1.9.2
….9.2. fixes #38