Upgrade to play 2.3.0/scala 2.11.1/sbt 0.13.5

Ported to play 2.3.0 and cleaned up a few things (like .gitignore).

Constructs like ```1500 milliseconds``` generate postfix warnings ... you can disable the warnings by either enabling postfix operators (which Odersky mentioned as regretting), or just using a ```.```.

The ```NamedParameter``` construct in 2.3 is pretty nice, nicer tan before (though it took a few tries to figure out how to use it cleanly -- I think it's nice this way).

Still working on getting sbtGenerator working.