PatchCollection.__init__ ignores all kwargs if match_original=True

[duncanmmacleod]

The PatchCollection constructor (__init__) ignores all keyword arguments if match_original=True is given, rather than just ignoring those five variables it takes from the original patches.

Assuming this is a bug, I think this patch fixes the issue.

https://gist.github.com/duncanmmacleod/91976ed41b20c48c5c87

The only thing I'm not sure about is whether the user should be warned if match_original=True and they also give one of the kwargs that gets overwritten?

[tacaswell]

Seems reasonable, can you open a PR with that patch?

The other way this could go is that more should be extracted from the original patches.

What kwargs in particular are you trying to use?

[duncanmmacleod]

I can easily create a PR for that.

I'm trying to use the label kwarg, which I don't think can be extracted from the patches, but perhaps more of the others can.