V4.5.9 CED 1401: (Change to ced1401.pas) Sampling interval now rounded to nearest clock tick, not truncated to nearest lower tick.
V3.4.6 Biorad/Prairie recording window now works with NIDAQmx. Real time display now correctly synchronised with analog signal.
Merge remote-tracking branch 'origin/master'

Conflicts:
	MAIN.dfm

Resolution:
        This is the text MAIN.dfm introduced in my
5e0103 push to master, not yet merged into origin/master.
Merge branch 'master' into overlay_traces

Conflicts:
	RecADCOnlyUnit.dfm
	RecADCOnlyUnit.pas
Resolution:
        RecADCOnlyUnit.dfm: Just location numbers, newer kept.
        RecADCOnlyUnit.pas: Just comments, plus use of Wait()
procedure for overlay_traces feature.