notes firmware v.1.4

1. fixed slow RDM discovery
2. fixed RDM filter 
3. After sucessfull Flash and after power cycle without DMX connected the splitter unit will show sw version of device on RDM led. 1.4 = 1xblink and then 4x blink, this is also shown on STATUS1 led on board
4. For flash of DST5 and DSR5.2 use in/thru connector for both unviverses
5. For flash of DSR10 first flash controll board via in/thru, then wait 20s /is mandatory as output need to go to HiZ and be able to allow the flash, then connect programmer to PORT E - flash 2nd board
