Bug 6067: Highlight (Green) Diag Message for INIT Button Run Start
Bug Number: 6067
Release notes (y/n): Yes
For Release Nums: 7.3

There had not been a "RUN STARTED" message when clicking the INIT Button in 
Run Control.  That has been provisionally implemented.  See this annotated 
screenshot.  (The new messages are indicated with RED arrows):

http://cadswes2.colorado.edu/~philw/2018/bugs/6067/DiagOut1-StartedInit.png

See change in Sim/RunInfo.cpp, method RunInfo::doStep().