[Dev] Inhibiting the stdout/stderr window

[Donn Denman]

When running a debug version of Chandler, you often see a window that  
shows printed output and exceptions.  Now that window will not show  
up when you launch from the command line with the --stderr parameter.

The window is important for SQA, but it can be annoying for us  
developers.  We needed a way to prevent the window from showing up  
because it was interfering with CATS scripts.  Checking for the usage  
of --stderr seemed like the natural flag to use.  Now, when you run  
the debug version with the --stderr option output will go to the  
terminal window just as it does on a release build.

- Donn