Fix ConcurrentModificationException
serialization fix
Dummy driver: more debug output
Merge pull request #11 from mgmax/develop

Dummy driver: more debug output
Frequency support optional for LAOS
Merge branch 'develop' of ssh://github.com/t-oster/LibLaserCut into develop
Merge branch 'develop' into feature-mpc6515
First attempt from mm@matthiasm.com