fixup! e528859 Run from RAILS_ROOT dir
fixup! e528859 define required env vars at top
Add script to bundle from cache if it exists
fixup! e528859 minor changes to bundle_cache
fixup! 22b965d remove unused bundle_install method
Move travis scripts to script/travis
fixup! e528859 use deployment bundle directory
fixup! 22b965d use deployment bundle directory
Use travis tasks in rails-deploy-before-down
Configure travis to cache bundle