Scala 2.11 + new banana-pome scala-js project

moved code to scala 2.11
also added banana-pome - a first [scala-js](http://www.scala-js.org/) project. A [pome banana](http://www.bananas.org/f2/dwarf-brazilian-vs-unidentified-pome-18078.html) is a small banana.
![image](https://cloud.githubusercontent.com/assets/124506/3559590/c95e1ff0-094c-11e4-9a47-5703c8ecc6ce.png)
As per [pro-musa definition](http://www.promusa.org/Pome+subgroup) the main characteristics of the fruit are that it is small and that "The fruit bunch develops at an angle while the rachis points vertically down. The fruit apex is often bottlenecked." which I think fits very well for the very first ScalaJS banana port.
Please, do not bring IDE related plugins into the project. You can deal with them in your general config.