Command line option for skipping part of the script

[hiker]

During debugging, I often don't need to do a checkout of dependencies (um, ukca, ...), or run the configurator again. I typically comment out these calls then.

It would be convenient if we had a command line option(s) to:

• skip any git/svn/fcm checkout
• configurator (ok, I wrote: "and maybe even file find" - that's stupid, file_find fills the artefact store :) )