versioncontrol_project 6.x-1.0-rc2

Catch-up release, implementing cvs.module's new "Maintainers" block (as seen on drupal.org's project pages) on Version Control API's new statistics API from the 6.x-1.0-rc2 release. And because that might not be sufficient in distributed-VCS scenarios, I also included the same block in a variant that not only includes project maintainers but all developers.

This release also updates the module's block deltas from integers to strings, so not only Version Control API itself but also this very module needs to be run through update.php.

Apart from that, no further changes compared to versioncontrol_project 6.x-1.0-rc1.