[Rules] 4th Edition rules are up

[richvalle]

Overwhelming force seems to be a factor (trying to Google it... not finding much that's good). So maybe the above and attacking DF value needs to be... at least 3x the def df value.

Well, kind of silly to make stuff up when we can wait and see what part 2 gives us, if anything.

I'm not sure when my first V4 game will be though I'm looking forward to trying out the rules.