Updates ffi to 1.9.5 in Gemfile, since 1.9.4 has been yanked. Updates Gemfile.lock.
Sets a ruby version and gemset for use by tools like rvm.
Revert "Sets a ruby version and gemset for use by tools like rvm."

This reverts commit b403dfa699135e7fa3c058a5f702b45a7cb264ce.
Sets ruby version and gemset for use by tools like rvm.
Revert "Updates ffi to 1.9.5 in Gemfile, since 1.9.4 has been yanked. Updates Gemfile.lock."

This reverts commit ecf153c2c891b3636dc67de5ec22d7a67aaaa1d1.
Merge pull request #4 from customink/rvm-support

Rvm support