JBIDE-15618 addition of management-only mode
remove sysouts
Update version to 3.0.0, change since tags, etc
Further adjustment of since tags, removal of some deprecated methods, no major changes yet
Initial impl of some new interfaces, though they may be moved or renamed
periodic checkin during planning work
Checking in further progress
Checking in with some new unit tests and ability to pass environment through dependent subsystems
blah