revised nova-compute ssh keys
Merge branch 'nova-compute-ssh' of https://github.com/cloudnull/ansible-lxc-rpc into fix_nova_sshkey_gen
Fixed the nova ssh key creation task to properly generate the nova user key on all host for to be the nova user isntead of root, added nova shell set to /bin/bash
fixed duplicate shell
changed lineinfile to pure shell command due to race condition on adding
items to tmp/authorized_keys
Merge pull request #72 from jacobwagner/fix_nova_sshkey_gen

Fix nova sshkey gen