Added notrly, greateris, and lesseris operators; added missing semicolons.

Added new operators:

notrly - !
greateris - >=
lesseris - <=

The last two don't have the best names, but I couldn't think of a way to make them such more doge.

Also, I had some extra time so I wrote a port of Dogescript in Nimrod with a few extra compiler features (https://github.com/achesak/nimrod-dogescript).