Improving legacyUpdate endpoint
Improving legacyUpdate endpoint

This is closer to the new API spec, @mxstbr

alobodig/keystone,ONode/keystone,xyzteam2016/keystone,sendyhalim/keystone,webteckie/keystone,joerter/keystone,webteckie/keystone,michaelerobertsjr/keystone,everisARQ/keystone,Yaska/keystone,matthewstyers/keystone,Adam14Four/keystone,brianjd/keystone,rafmsou/keystone,xyzteam2016/keystone,frontyard/keystone,trentmillar/keystone,ratecity/keystone,ratecity/keystone,everisARQ/keystone,jacargentina/keystone,w01fgang/keystone,snowkeeper/keystone,benkroeger/keystone,pr1ntr/keystone,vokal/keystone,linhanyang/keystone,joerter/keystone,andrewlinfoot/keystone,danielmahon/keystone,trentmillar/keystone,snowkeeper/keystone,Pop-Code/keystone,matthewstyers/keystone,ONode/keystone,dryna/keystone-twoje-urodziny,cermati/keystone,matthieugayon/keystone,Yaska/keystone,rafmsou/keystone,matthieugayon/keystone,sendyhalim/keystone,jstockwin/keystone,frontyard/keystone,naustudio/keystone,michaelerobertsjr/keystone,naustudio/keystone,andrewlinfoot/keystone,andrewlinfoot/keystone,Pop-Code/keystone,w01fgang/keystone,matthewstyers/keystone,concoursbyappointment/keystoneRedux,dvdcastro/keystone,concoursbyappointment/keystoneRedux,frontyard/keystone,vokal/keystone,trentmillar/keystone,Yaska/keystone,cermati/keystone,dryna/keystone-twoje-urodziny,danielmahon/keystone,pr1ntr/keystone,jacargentina/keystone,dvdcastro/keystone,jstockwin/keystone,brianjd/keystone,danielmahon/keystone,benkroeger/keystone,vokal/keystone,Adam14Four/keystone,benkroeger/keystone,alobodig/keystone,naustudio/keystone