US_DEBUG logs even when not in debug mode

[magnet]

Currently all logging methods trace on stdout even when in release mode.

It would be nice to make that conditional on whether DEBUG mode is set.

[saschazelzer]

Yes, that is actually on my todo list (it is annoying in our software too...). I probably have to push the priority for this.

[saschazelzer]

I managed to improve on the logging mechanism. Now all debug messages are suppressed in release builds and there is a possibility to suppress certain message types via preprocessor defines or to install a message handler and take care of printing the message yourself. See installMsgHandler.

Let me know if there are any issues.