Allow access to 7.x dev branch

Hi,

This module is providing a much-needed solution, but it has a lot of problems too. Allowing access to the dev branch would allow people (like me) to submit patches to help fix problems, as well as to keep up with new features and fixes before they are released.

Right now there is no dev release, and there is no access to the 7.x branch on the "Version Control" page. Could this be fixed?