Gemfile: Use rspec-example_disabler from Rubygems
Merge pull request #319 from opf/feature/rspec-example_disabler_from_rubygems

Gemfile: Use rspec-example_disabler from Rubygems
Fixed comment and non-functional error check
Merge pull request #321 from opf/feature/rails3_error_fix

Fixed comment and non-functional error check