ENG-4880: Make indexes with NaNs inside work.
Need to make expressions work with IEEE754 next.
ENG-4880: Make comparison work in IEEE754 mode or not depending on caller.
Needs tests.
Merge remote-tracking branch 'origin/master' into ENG-4880-NaNcrash
ENG-4880: Fix licensecheck whitespace.
ENG-4880: Move the work to follow IEEE754 comparisons higher up.
Now NaN (and null) comparisons return false in the comparison expression, rather than in NValue.
ENG-4880: Make vectors return false from NValue::isNull()
Merge remote-tracking branch 'origin/master' into ENG-4880-NaNcrash
ENG-4880: Roll back proper null and NaN behavior because it gives different answers for different configs. Sigh.
ENG-4880: Tests for NaN
ENG-4880: test tweaks from pmartel feedback.
Merge pull request #664 from VoltDB/ENG-4880-NaNcrash

Eng 4880 NaN crash