Fix issue 2450 globalize

This is needed to get refinery to work with the latest version of globalize for ActiveRecord 3.x, because globalize no-longer autosaves translations (see #2450). It requires globalize/globalize#296 to be released and the refinery gemspecs to also be updated from `globalize3 ~> 0.3.0` to `globalize ~> 3.0.0`.