Simple re-write of nearestNeighbor
Begin fixing up clean5-stdPanel for new setup.
Slight fix to Neighbors, more efficient mem use
Re-worked c5, c6, reg stuff for UTM merges.

c5 should be ready for aermod only

c6 almost there, quantiles dont use right sample

Test run of contES regs.
set_missings in atmods/dechunker should be ready.

Added set_missings method to dechunker, but not debugged

set_missings in dechunker maybe debugged, wait on aermod revamp
Minor fixes to get OutregPlots working