Re: new plugin: BuddyPress Rate Forum Posts
I’d say, definitely go with how you’ve got it now, by adding classes through javascript: it works, and it seems to be gaining popularity: quite right too – it’s a great plugin.
Yes, I’d say wait for the hook to make it into a release version of buddypress before removing the javascript way of adding classes to posts.
re creating diff files – yes, SVN is clunky. If you’re developing in windows, tortoiseSVN isn’t too bad an interface to it.