bumped to ruby version 2.0.0
updated rubygems.org source
Git ignores Gemfile.lock

Removes the Gemfile.lock file in line with Yehuda Katz article:
http://yehudakatz.com/2010/12/16/clarifying-the-roles-of-the-gemspec-and-gemfile/
Fixes open ended dependencies
bumps version to 1.0.0 due to dependency changes