* commands argument now accepts a dict arguments
* rpcs argument now accepts a dict argument
* waitfor has been renamed to wait_for with an alias to waitfor
* only show commands are allowd when check mode is specified
* config mode is no longer allowed in the command stack
* add argument match with valid values any, all
This adds a new module, junos_command that can be used for sending commands
to Juniper JUNOS based devices. The junos_command module is implemented
over a cli transport