Versions updated for lastest released of Scala (& Akka) and Scalaz

Hello,

This project is very helpful thanks! 

I've just made some changes to match the latest releases of scala (2.10.0) and scalaz (M7).

I've also to comment out the idea plugin (no release for the 2.10 scala version). However, since this configuration should be part of the local sbt configuration I guess it is not a big deal.

Thanks to this lib I'm now able to use a for-comprehension using monad transformer around akka futures ^^. 

Hope you'll find this PR okay.

bye bye