Plugin UT: make eventlet hooking instance-based instead of class-based
Plugin UT: make eventlet hooking instance-based instead of class-based

TrimBiggs/calico,neiljerram/felix,neiljerram/felix,ocadotechnology/calico,matthewdupre/felix,anortef/calico,alexhersh/calico,kasisnu/calico,Metaswitch/calico,kasisnu/calico,matthewdupre/felix,neiljerram/felix,ocadotechnology/calico,beddari/calico,neiljerram/felix,TrimBiggs/calico,nbartos/calico,Metaswitch/calico,anortef/calico,alexhersh/calico,beddari/calico,nbartos/calico