fixed convention warnings reported by scalastyle that do not require refactoring of the code
clean-up compiling code
  - removed deprecated sbt/project/build.scala and sbt/sbt-launch.jar
  - update bin/sbt-launch-0.12.0-RC1.jar to bin/sbt-launch-0.12.2.jar
  - use /usr/bin/sbt provided in sbt.deb package as template for bin/sbt
  - added configure script to enable "sbt publish-local" from outside source tree