Improvements
- Discovered main classes are now sorted. #1180 by @kretes
- Implemented a new mechanism of forking javac, whereby errors are captured. Also more likely to run in-process. #1702 by [@jsuereth][jsuereth]
Fixes
- Javac warnings now always treated as warnings. #1702/#875 by [@jsuereth][jsuereth]
- compilerReporter now fed to javac during incremental compilation. #1542 by [@jsuereth][jsuereth]