made STs call 'calicoctl checksystem --fix' before running each ST
made STs call 'calicoctl checksystem --fix' before running each ST


Former-commit-id: 06e4839e91341a3e636287d0f2fc6f5f11328ef3
TrimBiggs/libcalico,djosborne/libcalico,tomdee/libcalico,insequent/libcalico,Symmetric/libcalico,projectcalico/libnetwork-plugin,tomdee/libnetwork-plugin,robbrockbank/libcalico,TrimBiggs/libnetwork-plugin,projectcalico/libcalico,TrimBiggs/libnetwork-plugin,alexhersh/libcalico,L-MA/libcalico,plwhite/libcalico,caseydavenport/libcalico