Improve efficiency of event.fire_master

event.fire_master was doing an authentication handshake on
every event.  When firing events for monitoring-type applications
across many serversthis is a noticable amount of extra work for the
master.

This change sends events via the local minion event bus to the main
minion process, and from there up to the master using the existing
crypticle instance.
Merge pull request #9881 from jcsp/develop

Improve efficiency of event.fire_master