Pointlessly rewrite some HTTP funcs to avoid asprintf.
Pointlessly rewrite some HTTP funcs to avoid asprintf.

Saw the "H2O" server library on HN, which claims to be fast and supports HTTPS and HTTP/2. Might switch depending on how it looks, which would make all this micro-optimization worthless.

btrask/stronglink,shaunstanislaus/stronglink,iOSCowboy/stronglink,Ryezhang/stronglink,yamingd/stronglink,Ryezhang/stronglink,nkatsaros/stronglink,iOSCowboy/stronglink,guiquanz/stronglink,shaunstanislaus/stronglink,Ryezhang/stronglink,btrask/stronglink,Lacra17/stronglink,Lacra17/stronglink,yamingd/stronglink,feld/stronglink,rmoorman/stronglink,btrask/stronglink,guiquanz/stronglink,rmoorman/stronglink,guiquanz/stronglink,yamingd/stronglink,btrask/stronglink,shaunstanislaus/stronglink,feld/stronglink,rmoorman/stronglink,feld/stronglink,nkatsaros/stronglink,iOSCowboy/stronglink,Lacra17/stronglink,nkatsaros/stronglink