added Gemfile.lock back to .gitignore as travis was erroring with - The command "bundle install --deployment" failed. Retrying, 2 of 3.
added Gemfile.lock back to .gitignore as travis was erroring with - The command "bundle install --deployment" failed. Retrying, 2 of 3.

Kosmas/cucumber-rails,cucumber/cucumber-rails,analog-analytics/cucumber-rails,cucumber/cucumber-rails,zillou/cucumber-rails,ipmobiletech/cucumber-rails,analog-analytics/cucumber-rails,Kosmas/cucumber-rails,cucumber/cucumber-rails,ipmobiletech/cucumber-rails,Kosmas/mime-types-runtime-dependency,zillou/cucumber-rails