add timeout http-keep-alive to the router template
add timeout http-keep-alive to the router template

a customer reported that when using "timeout http-request" for slowloris
protection it can impact connections with keep-alive. The HAProxy router
sets "timeout http-keep-alive" to "timeout http-request" when the former
is set and the latter is not and that can degrade the performance of browsers
that do not expect such a low timeout for HTTP keep-alive connections.

I added this timeout in commit: 527899eda and it was removed in
commit: a41ce2c. It looks like the removal was an oversight.

Bug 1391585

kargakis/origin,rootfs/origin,ryanj/origin,robertol/origin,linzhaoming/origin,csrwng/origin,sferich888/origin,rrati/origin,pravisankar/origin,markllama/origin,spadgett/origin,liggitt/origin,tnozicka/origin,openshift/origin,detiber/origin,louyihua/origin,mdshuai/origin,rajatchopra/origin,rootfs/origin,pravisankar/origin,abutcher/origin,php-coder/origin,mkumatag/origin,ironcladlou/origin,dobbymoodge/origin,luciddreamz/origin,sspeiche/origin,aveshagarwal/origin,mdshuai/origin,adelton/origin,PI-Victor/origin,rhamilto/origin,wjiangjay/origin,dinhxuanvu/origin,liggitt/origin,ryanj/origin,maxamillion/origin,smarterclayton/origin,jupierce/origin,rootfs/origin,aveshagarwal/origin,miminar/origin,wjiangjay/origin,akram/origin,hroyrh/origin,rhamilto/origin,wjiangjay/origin,mahak/origin,dgoodwin/origin,deads2k/origin,dgoodwin/origin,pweil-/origin,smarterclayton/origin,luciddreamz/origin,dinhxuanvu/origin,pravisankar/origin,goern/origin,jupierce/origin,legionus/origin,kargakis/origin,sallyom/origin,nhr/origin,imcsk8/origin,marun/origin,mfojtik/origin,jim-minter/origin,gabemontero/origin,ravisantoshgudimetla/origin,detiber/origin,sdminonne/origin,anpingli/origin,dcbw/origin,dobbymoodge/origin,spadgett/origin,liggitt/origin,jsafrane/origin,imcsk8/origin,pweil-/origin,mahak/origin,mfojtik/origin,thrasher-redhat/origin,miminar/origin,thrasher-redhat/origin,matthyx/origin,openshift/origin,jpeeler/origin,sjug/origin,wjiangjay/origin,liggitt/origin,ncdc/origin,jpeeler/origin,jim-minter/origin,nhr/origin,pmorie/origin,robertol/origin,csrwng/origin,nak3/origin,spadgett/origin,dobbymoodge/origin,arilivigni/origin,aveshagarwal/origin,Miciah/origin,sspeiche/origin,rrati/origin,anpingli/origin,php-coder/origin,tnozicka/origin,mrogers950/origin,mdshuai/origin,coreydaley/origin,jeremyeder/origin,chlunde/origin,php-coder/origin,ravisantoshgudimetla/origin,openshift/origin,raffaelespazzoli/origin,smarterclayton/origin,elyscape/origin,kargakis/origin,arilivigni/origin,robertol/origin,thrasher-redhat/origin,danmcp/origin,liggitt/origin,kargakis/origin,xiuwang/origin,jpeeler/origin,markllama/origin,linzhaoming/origin,mdshuai/origin,sdminonne/origin,legionus/origin,spadgett/origin,jsafrane/origin,stevekuznetsov/origin,akram/origin,ravisantoshgudimetla/origin,hferentschik/origin,jwhonce/origin,PI-Victor/origin,ingvagabund/origin,raffaelespazzoli/origin,dgoodwin/origin,matthyx/origin,eparis/origin,adelton/origin,rhcarvalho/origin,jim-minter/origin,liangxia/origin,ramr/origin,jwhonce/origin,imcsk8/origin,PI-Victor/origin,hferentschik/origin,marun/origin,ravisantoshgudimetla/origin,juanvallejo/origin,rootfs/origin,ryanj/origin,mfojtik/origin,mrogers950/origin,matthyx/origin,jeremyeder/origin,rajatchopra/origin,coreydaley/origin,kargakis/origin,wanghaoran1988/origin,eparis/origin,simo5/origin,louyihua/origin,ncdc/origin,PI-Victor/origin,raffaelespazzoli/origin,dobbymoodge/origin,miminar/origin,wanghaoran1988/origin,sg00dwin/origin,akram/origin,dinhxuanvu/origin,ingvagabund/origin,pmorie/origin,juanvallejo/origin,JacobTanenbaum/origin,juanvallejo/origin,rhcarvalho/origin,linzhaoming/origin,ryanj/origin,pmorie/origin,ravisantoshgudimetla/origin,imcsk8/origin,miminar/origin,jwhonce/origin,wanghaoran1988/origin,hferentschik/origin,nhr/origin,marun/origin,sspeiche/origin,dmage/origin,mdshuai/origin,dcbw/origin,sjug/origin,louyihua/origin,rrati/origin,dmage/origin,abutcher/origin,jwhonce/origin,gabemontero/origin,childsb/origin,jeremyeder/origin,imcsk8/origin,mkumatag/origin,nak3/origin,wanghaoran1988/origin,maxamillion/origin,bparees/origin,abutcher/origin,rhamilto/origin,deads2k/origin,rajatchopra/origin,dmage/origin,pmorie/origin,goern/origin,ryanj/origin,mrogers950/origin,markllama/origin,dcbw/origin,dmage/origin,csrwng/origin,liangxia/origin,rhcarvalho/origin,rhamilto/origin,jwhonce/origin,dobbymoodge/origin,ncdc/origin,Miciah/origin,danmcp/origin,childsb/origin,hferentschik/origin,danmcp/origin,enj/origin,ramr/origin,tnozicka/origin,juanvallejo/origin,robertol/origin,elyscape/origin,miminar/origin,maxamillion/origin,childsb/origin,pecameron/origin,raffaelespazzoli/origin,pecameron/origin,rhamilto/origin,chlunde/origin,simo5/origin,ironcladlou/origin,hferentschik/origin,bparees/origin,mdshuai/origin,kargakis/origin,enj/origin,childsb/origin,legionus/origin,tdawson/origin,eparis/origin,arilivigni/origin,rhcarvalho/origin,robertol/origin,stevekuznetsov/origin,dgoodwin/origin,detiber/origin,mrogers950/origin,jwhonce/origin,anpingli/origin,Miciah/origin,rajatchopra/origin,louyihua/origin,sg00dwin/origin,elyscape/origin,goern/origin,php-coder/origin,maxamillion/origin,rajatchopra/origin,matthyx/origin,louyihua/origin,pmorie/origin,smarterclayton/origin,rrati/origin,abutcher/origin,eparis/origin,chlunde/origin,liangxia/origin,ironcladlou/origin,mrogers950/origin,aveshagarwal/origin,pravisankar/origin,jpeeler/origin,hroyrh/origin,deads2k/origin,soltysh/origin,linzhaoming/origin,goern/origin,adelton/origin,detiber/origin,simo5/origin,pweil-/origin,dinhxuanvu/origin,jsafrane/origin,arilivigni/origin,ramr/origin,ramr/origin,danmcp/origin,liangxia/origin,luciddreamz/origin,stevekuznetsov/origin,ryanj/origin,sg00dwin/origin,pravisankar/origin,jupierce/origin,PI-Victor/origin,sdminonne/origin,wjiangjay/origin,smarterclayton/origin,JacobTanenbaum/origin,gabemontero/origin,spadgett/origin,tdawson/origin,xiuwang/origin,sallyom/origin,tnozicka/origin,aveshagarwal/origin,jeremyeder/origin,luciddreamz/origin,dinhxuanvu/origin,tdawson/origin,rhcarvalho/origin,rrati/origin,mahak/origin,juanvallejo/origin,thrasher-redhat/origin,sferich888/origin,abutcher/origin,luciddreamz/origin,bparees/origin,detiber/origin,matthyx/origin,mrogers950/origin,wjiangjay/origin,sg00dwin/origin,rootfs/origin,tnozicka/origin,tdawson/origin,jupierce/origin,liggitt/origin,markllama/origin,wanghaoran1988/origin,childsb/origin,soltysh/origin,php-coder/origin,xiuwang/origin,php-coder/origin,JacobTanenbaum/origin,rajatchopra/origin,dcbw/origin,chlunde/origin,hferentschik/origin,miminar/origin,childsb/origin,juanvallejo/origin,nhr/origin,elyscape/origin,sjug/origin,tnozicka/origin,PI-Victor/origin,enj/origin,adelton/origin,soltysh/origin,sallyom/origin,linzhaoming/origin,simo5/origin,ramr/origin,dgoodwin/origin,liangxia/origin,sferich888/origin,liangxia/origin,nak3/origin,maxamillion/origin,legionus/origin,sspeiche/origin,luciddreamz/origin,markllama/origin,elyscape/origin,markllama/origin,jpeeler/origin,adelton/origin,dobbymoodge/origin,pecameron/origin,nhr/origin,robertol/origin,ncdc/origin,jeremyeder/origin,legionus/origin,stevekuznetsov/origin,dcbw/origin,mkumatag/origin,hroyrh/origin,ingvagabund/origin,coreydaley/origin,simo5/origin,marun/origin,imcsk8/origin,jupierce/origin