Add div 0 check for adivb
code cleanup - remove some dead code from computation/reductions.py
fix conflicts
minor usability and help text changes
part of set 9; still needs work so commented out for now
Add 'special value' argument to derive() to handle 2-phase derived variables in land set 5.
clean up reduceRegion for derived variables passing in different types of regions arguments (key vs dict entry vs array)
replace defines.py with a varinfo dictionary. This could be expanded later, but basically I needed a decent way to generate html pages for classic view, plus the tables for land set 5.
finsih land set 5 support
Merge branch 'devel2' into devel