bullets! and version control

just a small update got the turrets and bullets put into my class structure now

I also set up version control using mercurial and macHG.  I spent a little time trying what type of version control to go with but since macHG looked really easy to use and that it is free I went with that.  I've done a few branching and merging tests, it took a couple of trys to get what I was doing but once I got the hang of things its all smooth sailing