Add httpclose option to default haproxy config
Add httpclose option to default haproxy config

API DELETE calls were hanging as they return a 204. Without option
httpclose, these connections remain open and from a client's
perspective, the call returned no data. It sees this as a failure.
These failures have all kinds of rippling effects on things like
Horizon.

channus/ursula,aldevigi/ursula,twaldrop/ursula,knandya/ursula,j2sol/ursula,wupeiran/ursula,narengan/ursula,dlundquist/ursula,edtubillara/ursula,dlundquist/ursula,mjbrewer/ursula,zrs233/ursula,paulczar/ursula,ddaskal/ursula,pgraziano/ursula,sivakom/ursula,MaheshIBM/ursula,rongzhus/ursula,fancyhe/ursula,persistent-ursula/ursula,blueboxjesse/ursula,pgraziano/ursula,zrs233/ursula,masteinhauser/ursula,andrewrothstein/ursula,fancyhe/ursula,narengan/ursula,edtubillara/ursula,EricCrosson/ursula,narengan/ursula,pbannister/ursula,aldevigi/ursula,panxia6679/ursula,pgraziano/ursula,twaldrop/ursula,wupeiran/ursula,knandya/ursula,fancyhe/ursula,wupeiran/ursula,blueboxjesse/ursula,jwaibel/ursula,allomov/ursula,edtubillara/ursula,blueboxgroup/ursula,nirajdp76/ursula,panxia6679/ursula,pbannister/ursula,ryshah/ursula,panxia6679/ursula,allomov/ursula,rongzhus/ursula,kennjason/ursula,blueboxjesse/ursula,blueboxjesse/ursula,EricCrosson/ursula,MaheshIBM/ursula,nirajdp76/ursula,ryshah/ursula,j2sol/ursula,fancyhe/ursula,ddaskal/ursula,sivakom/ursula,ryshah/ursula,masteinhauser/ursula,davidcusatis/ursula,lihkin213/ursula,allomov/ursula,channus/ursula,j2sol/ursula,knandya/ursula,zrs233/ursula,channus/ursula,jwaibel/ursula,wupeiran/ursula,MaheshIBM/ursula,blueboxgroup/ursula,pgraziano/ursula,andrewrothstein/ursula,rongzhus/ursula,dlundquist/ursula,msambol/ursula,msambol/ursula,pbannister/ursula,blueboxgroup/ursula,greghaynes/ursula,paulczar/ursula,zrs233/ursula,kennjason/ursula,channus/ursula,greghaynes/ursula,mjbrewer/ursula,masteinhauser/ursula,twaldrop/ursula,msambol/ursula,masteinhauser/ursula,davidcusatis/ursula,aldevigi/ursula,persistent-ursula/ursula,nirajdp76/ursula,lihkin213/ursula,rongzhus/ursula,persistent-ursula/ursula,ddaskal/ursula,lihkin213/ursula,davidcusatis/ursula,sivakom/ursula,andrewrothstein/ursula,persistent-ursula/ursula,j2sol/ursula,blueboxgroup/ursula,nirajdp76/ursula,knandya/ursula,narengan/ursula,kennjason/ursula,paulczar/ursula,jwaibel/ursula,ddaskal/ursula,panxia6679/ursula,mjbrewer/ursula,twaldrop/ursula,edtubillara/ursula,lihkin213/ursula,greghaynes/ursula,EricCrosson/ursula,ryshah/ursula