[Coin-bcpdiscuss] Turn off all output by default

[Paul Pacheco]

Is there a way to turn off all the output messages?

I would like to make a tool that receives a problem through stdin and outputs 
it to stdout and use getopt for parameters, so it behaves more unix like. The 
tool is based on the BranchAndCut example.

I got the getopt and stdin part done. 

However the libraries spit a lot of debugging information that conflict with 
my objective. I would like to just pass a -v to the command line for verbose 
to turn the output on and -vv and -vvv, ... to set the log level.

I tried with solver.messageHandler()->setLogLevel(0) but it did not work.