After the first batch of modules I made, it was discovered by me and others that the footprint I used for the Gadgeteer socket didn't leave much room for soldering. For the second batches, I altered the footprint and extended each pad out 1mm to give a bit more room to get a soldering iron in there. I was asked if I was willing to share the footprint, and of course I am, so here it is.
Standard:
Extended:
The library is available here.