Add godoc to justify use of developmentRedirectURI
Add godoc to justify use of developmentRedirectURI

Spawned from:
https://github.com/openshift/origin/pull/10895#issuecomment-249967277

This patch adds a brief explanation for the use of "localhost:9000" as a
default develppment redirect URI in the `oc cluster up` setup.

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