switch from sbt to maven and add cross version builds
Reorganized imports in HelpServlet
Enabled cross-building for 2.10 and 2.11
Setting version to 0.6.1
Setting version to 0.6.2-SNAPSHOT
Update README to reflect that project is now built with SBT rather than Maven
Merge pull request #18 from benmccann/readme-sbt

Update README to reflect that project is now built with SBT rather than Maven