Additionally, optimizes the build process a bit via leaving only the runtime
(and `busybox`) in the final image, and additionally building the runtime
without `std` (as we solely need the WASM blob from this process).
Consensus has been nuked for an AcceptAny currently routed throough PoW
(when it doesn't have to be, doing so just took care of a few pieces of
leg work).
Updates AGPL handling.