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.  This has been added See this annotated screenshot.
(The new messages are indicated with RED arrows):

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

Here is a sequence of diagnostic messages shown by loading the test model, 
and, in the Run Control dialog, clicking the "Init" then "Continue" buttons.
The new message is the same as the "RUN STARTED" message, but also with 
"(INIT)" -- see Line #4:

1: : Model File Information:
2: : Last saved on: 01-04-2018 11:29:31.
3: : Last saved by "clemenma" using "RiverWare 7.2".
4: : ------ Simulation RUN STARTED (INIT) ------
5: : "bug6067.mdl.gz at 14:40:55 January 12, 2018"
6: : ----------------------------------
7: : ------ Simulation RUN CONTINUED ------
8: : "bug6067.mdl.gz at 14:40:58 January 12, 2018"
9: : ----------------------------------
10: : ------ Simulation RUN FINISHED ------
11: : "bug6067.mdl.gz at 14:40:58 January 12, 2018 (0 seconds)"
12: : ----------------------------------

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