Merge MilkDrop2 History with libProjectM, open-access Licenses?

[mancoast]

Greetings, This discussion is about the License of MilkDrop 2.25c

What is the License of MilkDrop 2.25c?
Are we in the clear to merge libprojectM history with MilkDrop history in GIT?

REF::

https://github.com/projectM-visualizer/projectm/pull/227

Thanks,
coast