Make console progress appear on one line

[thomergil]

Rather than outputting 1 line per frame, we should use \r to print out progress on a single line.

[McPringle]

Well, what you see there is no direct console output. You see an output of the logging stream. So you must first reconfigure the logging system to write the log output to a file (configuration is done in logback.xml) and create new messages just for the console.