Bundler will sometimes try and verify the dependancy tree

This fixes a bug where gems that may not be required in an env
such as development or test will be verified by bundler causing
the deploy to sometimes fail.
Add same logic to only_with_rvm
Revert "Add same logic to only_with_rvm"

This reverts commit 99bbfbdd3db35c21a7e2940a01dc43f5710983c4.
Merge pull request #45 from jcstringer/master

Bundler will sometimes try and verify the dependancy tree