Build.scala must die

- factor out build into main build.sbt and sub project build.sbt
- bump 2.11.1 to 2.11.2
- factor out common settings for publishing and test coverage
- add settings for framian scaladoc
- use provided scope for Play dependencies
correct path for spec2 reports
Merge pull request #27 from dwhjames/topic/build-gardening

Build.scala must die