Moves maple internal for better control and built by sbt
Fix build order to put maple last, maple does not depend on scalding
do not publish maple as a scala lib
Use the global version of hadoop
Upgrade sbt assembly to latest version
Merge pull request #779 from twitter/feature/move_maple_to_scalding_repo

Feature/move maple to scalding repo
Merge pull request #780 from twitter/feature/upgrade_sbt_assembly

Upgrade sbt assembly to latest version
Merge branch 'develop' of https://github.com/twitter/scalding into develop