allow manybubbles to run icinga commands

so that he can ACK Icinga warnings and
schedule downtimes

< manybubbles> icinga-wm: I know, I did that intentionally
< manybubbles> I'd love it if I could pre-silence the criticals
               from restarting the service....

Change-Id: I2f2733fbfa543d3bb638411ae2a2ce00a24bed35
Merge "allow manybubbles to run icinga commands" into production