While installing your set of addons (I really like it) I stumbled upon one issue.
Two modules - select_vismaya.py and CurveIntersections.py Python reported that names of variables are present in blocks prior to declaration as globals. Quite reasonably. So, in first case I just added alike tests:

if 'xxx' not in globals():
    global xxx

In second case I added global definitions in module's global scope. And it works.
However, to have it done properly I suppose adding global definitions in just after classes headers would be most reasonable.

Hi mkbreuer,

Sorry to contact you by creating an issue (do not know how to do so otherwise)

I am just kind of confused about the license of this/these plugin(s), if I am creating some assets for commercial use, am I allowed to use this/these plugins to help me boosting my productivity?

Regards