Add version/scalaVersion info to onLoadMessage
Add version/scalaVersion info to onLoadMessage

Very handy if you re-STARR and un-STARR a lot, and/or if you're
switching between the 2.12.x and 2.13.x branches, at the cost of extra
output on every build load - a good trade, IMO.

lrytz/scala,scala/scala,scala/scala,scala/scala,scala/scala,scala/scala,lrytz/scala,scala/scala,lrytz/scala,lrytz/scala,lrytz/scala,lrytz/scala