If there are already ongoing actions for a process managed by monit, the
module would exit unsuccessfully. It could also give off false positives
because it did not determine whether the service was started/stopped
when it was in a pending state. Which might be turning the service off,
but the action was to start it.
For example "Running - pending stop" would be regarded as the service
running and "state=enabled" would do nothing.
This will make Ansible wait for the state to finalize, or a timeout decided
by the new `max_retries` option, before it decides what to do.
This fixes issue #244.
