Pierre figured out that NIM crate not working.  We now see LVDS outputs from the individual channels firing. 
Each set of two different channels is ganged together into a single self-trigger output.  By setting the
register 0x1n84 to 3 we enable so that if either input channel fires then the self-trigger for that group fires.

Bryerton provided CDM outputting 50MHz clock; all V1725s now running with external clock.

Modified frontend to readout 4 modules and 16 channels per module.

Still need to modify the analyzer to show data for all 4 modules.