Scmbug for Git/BitKeeper - Bugzilla Integration

I ran across an interesting open source program called Scmbug. Scmbug is a system that integrates software configuration management with bug-tracking.

I was looking for a tool that would help with :

* Showing what bugs are fixed in a particular build or revision control commit?

* Automatically updating a bug tracker when bugs are completed (fixed) and approved.

* Not allowing unapproved bugs to be committed to a given branch.

I suppose there are sophisticated tools (from the likes of Rational etc.), but I'm looking for something that's relatively simple, free, and integrates with Bugzilla. Scmbug seems to fit that bill.

Here's a link to the Scmbug manual :