Cross-build with Scala 2.11.1

- Enable cross building with Scala 2.11.1
- Remove lift-json integration due to the lack of Scala 2.11 support (yet)
- Fix deprecation warning for Scala 2.11.1
- Update dependencies
Merge pull request #84 from debasishg/wip/scala-2.11

Cross-build with Scala 2.11.1