v1.4, 2017-04-10
    added more documentation
    added Python CLI
    fixed inverted pulse mode
    updated submodules general-cores, vme64x-core and uvm_agents
    added wbgen2 generated files
    added WB-SPI core for AD9512 (can override HW control)
    added signal back loop (connected to front panel LEMOs)
    typos, small bugfixes

v1.3, 2016-09-21
    transformed Python driver to OOP code, simplified interface
    fixed temperature readout
    improved timing of the SET/RES pulses (IOB registers, timing constraints)
    added AD9512 OUT4 fine delay control
    added trigger latency calibration example code

v1.2, 2016-09-05
    introduced independent Trigger Latency for the two channels
    updated Python driver

v1.1, 2016-09-01
    added patches used on submodules during development of v1.0
    added version numbers (major.minor.rev)
    added clock_stable status bit
    added option for negative pulses
    added HISTORY.txt

v1.0, 2016-08-24
    first official release