[Opensim-dev] Proposal: change opensim command line options for console

[Melanie]

I propose to change the command line options as follows:

Remove -background and -gui

Add -console, which can be either "local", meaning a full featured, 
colored console with help and editing, "basic", corresponding to 
-gui=true, "rest", which will be a REST console handler for a remote 
GUI app, and "none", which will act like -background.

Add -logfile to specify a per-instance log file

Make both these new options available in the [Startup] section as well.

Melanie