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* ssh connections uses persistent connections by default. You can disable this
by passing controlpersist=0 to the connections options.
* ansible ssh connections now use ssh backend instead of paramiko.
ansible_ssh_common_args and ansible_ssh_extra_args are now taking in account.
* Add a new ansible connection options "force_ansible", when set to True,
testinfra will always call ansible for all commands he need to run.
* Handle all ansible connections types by setting force_ansible=True for
connections which doesn't have a testinfra equivalent connection (for example
"network_cli").