Added some features

Added the ability to use $user->uid in the URLs you take users to. Also added ability to have query strings such as node/add/forum?gid[]=15 and node/ognodeadd?type=forum&gid[]=15. Note that if you use a module that changes the URL, you'll have to specify the latter. For example, og_user_roles changes the first URL above to the second - so I have to specify the second.

Later, I'm sure I'll add the ability to use arg(0), arg(1), etc. in URLs.

Sorry I'm posting the whole module file. Remove the txt extension of course.