Added section about who is using this gem.
Non-semantic: just change order of lines.
Improve readme about running tests for all versions of Rails.
Add support for Rails 4.2.
Documentation about testing for Rails 4.2 as well.
Documentation about support for Rails 4.2.
Version 1.0.1.
Merge remote-tracking branch 'remotes/mainstream/master' into generation_options

Conflicts:
	README.md