Properly run the blocking ``configure_ssh`` function in a separate thread in one more place that was missed previously.  Also suppress output from ``ssh-add`` and do better key comparison in one more place.
Properly run the blocking ``configure_ssh`` function in a separate thread in one more place that was missed previously.  Also suppress output from ``ssh-add`` and do better key comparison in one more place.

beni55/flocker,lukemarsden/flocker,adamtheturtle/flocker,hackday-profilers/flocker,agonzalezro/flocker,w4ngyi/flocker,moypray/flocker,adamtheturtle/flocker,wallnerryan/flocker-profiles,w4ngyi/flocker,lukemarsden/flocker,mbrukman/flocker,LaynePeng/flocker,beni55/flocker,agonzalezro/flocker,adamtheturtle/flocker,achanda/flocker,LaynePeng/flocker,runcom/flocker,moypray/flocker,wallnerryan/flocker-profiles,w4ngyi/flocker,1d4Nf6/flocker,jml/flocker,LaynePeng/flocker,runcom/flocker,1d4Nf6/flocker,achanda/flocker,mbrukman/flocker,1d4Nf6/flocker,Azulinho/flocker,hackday-profilers/flocker,AndyHuu/flocker,Azulinho/flocker,jml/flocker,runcom/flocker,AndyHuu/flocker,wallnerryan/flocker-profiles,agonzalezro/flocker,mbrukman/flocker,lukemarsden/flocker,AndyHuu/flocker,Azulinho/flocker,beni55/flocker,moypray/flocker,jml/flocker,achanda/flocker,hackday-profilers/flocker