TEMP improve ssh handling
TEMP improve ssh handling

- set correct permissions for .ssh
- append instead of replacing existing authorized_keys

real fix should be to use ssh-copy-id instead

paramite/packstack,harveyzh/packstack,mahak/packstack,mahak/packstack,alincalinciuc/packstack,alincalinciuc/packstack,spkane/packstack,radez/packstack,derekhiggins/packstack,bcrochet/packstack,openstack/packstack,radez/packstack,openstack/packstack,fr34k8/packstack,xbezdick/packstack,bcrochet/packstack,spkane/packstack,pkilambi/packstack,derekhiggins/packstack,xbezdick/packstack,stackforge/packstack,imcsk8/packstack,radez/packstack,larsks/packstack,paramite/packstack,derekhiggins/packstack,harveyzh/packstack,mahak/packstack,weshayutin/packstack,stackforge/packstack,pkilambi/packstack,pkilambi/packstack,fr34k8/packstack,imcsk8/packstack,xbezdick/packstack,weshayutin/packstack,bcrochet/packstack,alincalinciuc/packstack,stackforge/packstack,larsks/packstack,palmer159/openstack-test,spkane/packstack,imcsk8/packstack,fr34k8/packstack,larsks/packstack,harveyzh/packstack,paramite/packstack,palmer159/openstack-test,openstack/packstack,palmer159/openstack-test,weshayutin/packstack