controller: Don't sendKeepAlive until listening
controller: Don't sendKeepAlive until listening

This avoids a race where the client receives the response header,
assumes the controller is listening for events and triggers something.

Signed-off-by: Lewis Marshall <748e1641a368164906d4a0c0e3965345453dcc93@lmars.net>

TribeMedia/flynn,whouses/flynn,Brandywine2161/flynn,TribeMedia/flynn,pkdevbox/flynn,technosophos/flynn,felixrieseberg/flynn,lmars/flynn,supermario/flynn,Brandywine2161/flynn,GrimDerp/flynn,justintung/flynn,GrimDerp/flynn,whouses/flynn,TribeMedia/flynn,clifff/flynn,tonicbupt/flynn,TribeMedia/flynn,clifff/flynn,supermario/flynn,rikur/flynn,TribeMedia/flynn,schatt/flynn,benbjohnson/flynn,arekkas/flynn,felixrieseberg/flynn,GrimDerp/flynn,Brandywine2161/flynn,rikur/flynn,tonicbupt/flynn,ozum/flynn,schatt/flynn,arekkas/flynn,TribeMedia/flynn,Brandywine2161/flynn,justintung/flynn,benbjohnson/flynn,shads196770/flynn,ozum/flynn,mubassirhayat/flynn,supermario/flynn,supermario/flynn,clifff/flynn,pkdevbox/flynn,jzila/flynn,philiplb/flynn,kgrz/flynn,GrimDerp/flynn,lmars/flynn,supermario/flynn,josephglanville/flynn,josephglanville/flynn,ozum/flynn,flynn/flynn,benbjohnson/flynn,felixrieseberg/flynn,shads196770/flynn,rikur/flynn,clifff/flynn,josephglanville/flynn,flynn/flynn,ozum/flynn,supermario/flynn,justintung/flynn,rikur/flynn,kgrz/flynn,kgrz/flynn,pkdevbox/flynn,arekkas/flynn,whouses/flynn,tonicbupt/flynn,jzila/flynn,GrimDerp/flynn,kgrz/flynn,jzila/flynn,technosophos/flynn,ozum/flynn,arekkas/flynn,josephglanville/flynn,whouses/flynn,pkdevbox/flynn,schatt/flynn,shads196770/flynn,whouses/flynn,Brandywine2161/flynn,felixrieseberg/flynn,justintung/flynn,justintung/flynn,benbjohnson/flynn,kgrz/flynn,benbjohnson/flynn,philiplb/flynn,arekkas/flynn,jzila/flynn,technosophos/flynn,benbjohnson/flynn,schatt/flynn,josephglanville/flynn,flynn/flynn,clifff/flynn,pkdevbox/flynn,jzila/flynn,philiplb/flynn,shads196770/flynn,jzila/flynn,lmars/flynn,mubassirhayat/flynn,ozum/flynn,pkdevbox/flynn,tonicbupt/flynn,lmars/flynn,schatt/flynn,lmars/flynn,shads196770/flynn,technosophos/flynn,GrimDerp/flynn,flynn/flynn,tonicbupt/flynn,rikur/flynn,felixrieseberg/flynn,technosophos/flynn,Brandywine2161/flynn,philiplb/flynn,rikur/flynn,josephglanville/flynn,kgrz/flynn,mubassirhayat/flynn,shads196770/flynn,clifff/flynn,justintung/flynn,whouses/flynn,philiplb/flynn,schatt/flynn,mubassirhayat/flynn,flynn/flynn