Unscrew PR #3416

This is the actually useful version of #3416. These bins were generated using the shiny new build system, which was so easy to use I forgot to add the binaries to #3416 when I landed this last time.

I was going to step through the gem creation as well, but upon reflection on my own dumbassery, that's better done in isolation, without a bugfix PR like #3416.

The bins here were generated against rapid7/meterpreter#76, aka, commit 2776adb8b91d9967983033c0e770c46a10a68002

Sorry about the confusion. Soon I believe this will be harder to screw up when all we need to do is build the gem and touch the gem version in the Gemfile.