GitLab

- removed some hg specific files
- moved index telling us which user id is which person

and some style fixes

[ADD] included also opacity weights into VisiTrace implementation --> VisiTrace should be complete now

[CHANGE] Add max and min to opacity scaling (makes it a slider in the current GUI) and make its effect immediate

+ corresponding tests

Optimization still missing.

We do not want to crash the whole application if only one module has a problem.

Optimitzation itself not implemented yet

[CHANGE] adapted name, order and documentation of properties ralting to the rendering of this module

Still has only one line instead of restarting when picking newly

DRY!