Progress feedback

[pantierra]

Currently the (random) error/warning and status messages of the script function as a basic progress indicator. However this is difficult to read and a lot of important or useful information is missed (therefore the issue #95 was opened).

This issue is about thinking about replacing the random messages with anything better to allow the user to monitor progress.

[pantierra]

The original input, by @grote:

"printing out random messages" currently serves as a progress indicator. If you would remove these, you would also remove the only way to monitor progress. So all I am saying is, please don't remove them without an alternative. This could be as simple as a --debug switch.