Added h1iscex channels to the DAQ. 

Stopped h1fw1 writing frames and un-mounted disk system. Dan then replaced both controller cards on the MSR SATABOY RAID. Once the file system was available again, I re-mounted and restarted h1fw1. The data gap on this frame writer is from 11:33 to 13:43 local time. h1fw0 was writing frames the whole time.

Created a new MEDM screen to show GPS diagnostics for the Timing Master unit. It was attached to the SITEMAP via a new SYS related display button. On the next DAQ restart these channels will be added to the frames.

Restarted the h1fe-cds EPICS gateway to see if this sped up the reconnection of MEDM to the Guardian IOCs. It did help somewhat but the reconnection is still slow.