* Shortened DoIntervalsIntersect to two comparisons, made inline.
* Applied DeMorgan's
* a_Max1 => a_Max2
* Moved DoIntervalsIntersect definition into header file.
* Moved DoesIntersect into header.
* Unindented line
This was mostly done automatically and then visually inspected for obvious errors.
All //-style comments should have a 2-space separation from the code, and 1 space after the comment sign.