Update makefile to 1.6.0-alpha.2
Update makefile to 1.6.0-alpha.2

blakebarnett/kops,austinmoore-/kops,robinpercy/kops,austinmoore-/kops,mad01/kops,blakebarnett/kops,robinpercy/kops,gambol99/kops,kubernetes/kops,reactiveops/kops,robinpercy/kops,chrislovecnm/kops,leandrocr/kops,chrislovecnm/kops,sethpollack/kops,blakebarnett/kops,MadDogTechnology/kops,pdh/kops,aledbf/kops,faraazkhan/kops,kubernetes/kops,justinsb/kops,kris-nova/kops,leandrocr/kops,WillemMali/kops,DualSpark/kops,faraazkhan/kops,pdh/kops,BradErz/kops,aledbf/kops,BradErz/kops,WillemMali/kops,andrewsykim/kops,BradErz/kops,faraazkhan/kops,mad01/kops,reactiveops/kops,reactiveops/kops,MadDogTechnology/kops,pdh/kops,andrewsykim/kops,MadDogTechnology/kops,leandrocr/kops,kris-nova/kops,andrewsykim/kops,sethpollack/kops,WillemMali/kops,sethpollack/kops,austinmoore-/kops,faraazkhan/kops,andrewsykim/kops,leandrocr/kops,pdh/kops,tsupertramp/kops,BradErz/kops,gambol99/kops,austinmoore-/kops,kris-nova/kops,mad01/kops,tsupertramp/kops,justinsb/kops,aledbf/kops,sethpollack/kops,DualSpark/kops,kubernetes/kops,gambol99/kops,mad01/kops,MadDogTechnology/kops,kris-nova/kops,chrislovecnm/kops,WillemMali/kops,justinsb/kops,tsupertramp/kops,gambol99/kops,robinpercy/kops,chrislovecnm/kops,reactiveops/kops,DualSpark/kops,aledbf/kops,blakebarnett/kops,tsupertramp/kops,DualSpark/kops