I believe we can use GPL because our code isnt included in the release of closed source code. (Code is loaded via external source)
We can just close our combat tag repo. It is no longer needed. We go off the main plugin.
We would need to dig up lardypants as he did a lot of the factorymod code way back when. We can't add whatever license without getting consent from previous contributors. Now this is mostly just a formality since all of them created the code with the intent that it be open source at least for use by Civcraft. They might have feelings about which license we use and we will have to try and convince them otherwise or bow to that.
We need a lawyer.
I did a crapton of config stuff for factorymod, I really doubt you need premission from config editors since the plugin functions fine without all the contributions so we're fine even if they try and be a problem.
In any case I gib permission for my config edits to be used however Justin feels like.
That might mean you can chose to relicense it without their consent. By default everyone is assumed to own their own code. But if there is a license up at the time of their submission they are assumed to have agreed to the terms.