styx/jquery-ui-rails-cdn — pull request #12 by felixbuenemann (2014-05-04 20:30:33+00:00)
Title: Only specifiy signing key if it exists

This gets rid of the following error when bundling from github:
Errno::ENOENT: No such file or directory @ rb_sysopen - $HOME/.gem/trust/gem-private_key.pem

This fix is required for bundle install to succeed when referencing the gem from git or local path.