Clean up percona-arbiter
Clean up percona-arbiter

more logic fixes, task naming, white space

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