Prevented crashes from more generic editor functions if accidentally called by splitter/merger 

Fixes Splitter/Merger Saving Hang

Catch Up

The RecordNode was accidentally starting the timestamp at the
beginning of the event buffer, rather than at byte #4.

used the term 'spread' as in the neuralynx software for now

works ok with RHD data

works for 64 channels now

these give reasonable output now, but it looks like we're getting the
same data on all three aux ins

ing branch 'upstream/master'

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This reverts commit 02637b37.

This reverts commit 46a11aba, reversing
changes made to 02637b37.

works well with one and two cables on current rev board