sbt 0.13.2
added scalariform
Merge pull request #1304 from sbt/wip/scalariform

scalariform
remove unnecessary var
some more source getting formatted
Merge pull request #1307 from xuwei-k/remove-unnecessary-var

remove unnecessary var
Merge pull request #1308 from sbt/wip/moreformatting

some more source getting formatted
Merge branch '0.13' of https://github.com/sbt/sbt into wip/reload-defaultProject

Conflicts:
	main/src/main/scala/sbt/Defaults.scala
	main/src/main/scala/sbt/Keys.scala
	main/src/main/scala/sbt/Load.scala
	main/src/main/scala/sbt/Project.scala