Add postInstallNotes for cassandra.
Add postInstallNotes for cassandra.

healthagentech/universe,madanadit/universe,drewkerrigan/universe,kensipe/universe,dbtucker/universe,aloismayr/universe,jfindley/multiverse,mesosphere/multiverse,crate/universe,dmitrypekar/universe,madanadit/universe,Capgemini/multiverse,AppliedIS/universe,ksivask/universe,kensipe/universe,concord/universe,enxebre/universe,mesosphere/multiverse,include/universe,triforkse/universe,yuchaoran2011/universe,Capgemini/universe,dbtucker/universe,madanadit/universe,nalingarg2/universe,titosand/universe,NimaVaziri/universe,Lnmix/multiverse,BuoyantIO/universe,healthagentech/universe,aloismayr/universe,data-fellas/multiverse,DataDog/universe,DataDog/universe,dbtucker/universe,Capgemini/multiverse,Flogistix/universe,neunhoef/universe,NimaVaziri/universe,crate/universe,kensipe/multiverse,AppliedIS/universe,elodina/universe,include/universe,niteshch207/universe,errordeveloper/universe,ravbaba/universe,errordeveloper/universe,titosand/universe,mwl/universe,yuchaoran2011/universe,niteshch207/universe,mesosphere/universe,ksivask/universe,mesosphere/universe-1.7,ravbaba/universe,NimaVaziri/universe,yuchaoran2011/universe,drewkerrigan/universe,dhilipkumars/universe,ContainerSolutions/universe,dhilipkumars/universe,kensipe/multiverse,aloismayr/universe,m4ce/universe,AppliedIS/universe,sttts/universe,dmitrypekar/universe,mesosphere/universe,data-fellas/multiverse,m4ce/universe,concord/universe,nalingarg2/universe,mwl/universe,enxebre/universe,ksivask/universe,triforkse/universe,elodina/universe,jfindley/multiverse,Flogistix/universe,neunhoef/universe,ContainerSolutions/universe,titosand/universe,socialvibe/universe,socialvibe/universe,Lnmix/multiverse,BuoyantIO/universe,BuoyantIO/universe,sttts/universe,kensipe/universe,niteshch207/universe,mesosphere/multiverse,errordeveloper/universe,dhilipkumars/universe,Capgemini/universe,mesosphere/universe-1.7