First steps to having config for reverse tunneling
Add basic writing out of reverse forward file
Add a simple proxy server implementation.

Flagrantly stolen from https://gist.githubusercontent.com/vmihailenco/1380352/raw/998714a841f6cb4ab70a27f222dd1cc24acb27f1/proxy.go :)
Clean up a bunch of dockerstart parameters
Eliminate a couple more variables
go fmt
Fold more params into just being the config
Move the remaining variables
Split the cmdline method up for easier testing
Pull the init process main function out
Try something to actually spin up proxies.

Lots of hardcoded stuff, but this is hopefully enough to start playing with
Actually check the docker version we rely on
Fix version code
Fix for the right capability names
Merge branch 'master' into portforward_in_container
Fix
Put the reverseforward stuff in the right place
Fix remote addr
More debug
Make the proxy actually work