Full cross-versioning #140
Description
Since the compiler API is constantly changing, we'll need to do full cross-versioning for the 0.4 release. Luckily, it's not too hard to bootstrap the miniboxing plugin:
./sbt-publish -J-Dminiboxing.bootstrap=stage1 clean compile package publish
./sbt-publish -J-Dminiboxing.bootstrap=stage2 clean compile package publish
./sbt-publish clean update compile package test publish