Reactivate logging on reading Installation file
Fix Match Error on BuildSuccess Publication
Makes preference Store save failure more visible
Scala Installation setting is now a multiSelect action
Trigger a classpath Check when a project opens
Having a specific non-container scala lib on CP sets the desired Source level
Some fixes.
Classpath checks are not listened to, so do things manually
Adding comment on compilerSettingsListener not watching classpathCheck
Delay the classpath Saving operation in a BUILD job

The BUILD is important.
Merge pull request #795 from huitseeker/investigation/CompilerSettings2

Scala Installation Support Improvements