Remove 'BUNDLED WITH' from Gemfile.lock
Remove 'BUNDLED WITH' from Gemfile.lock

Newer versions of bundler add this to Gemfile.lock, however everywhere
in our stack, ruby 1.9.3 is provided with earlier versions of bundler
(1.7.4) that don't add this.

alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet