WIP: Reducageddon
Moar reducers and date stuff
Proportion by time
Tombstone handling (maybe)
Fixes for sum_by and a few other changes
Fixed dictionary filter validation
Finishing touches. Still missing big cli test
Add key type param to KeyValue and support ints in count_by
Fixed NumFlips and count days test
Extra changes required for Dates
Switch to compact date offsets
Thank god for property tests - sumby was broken
Add tombstone to Value.toStringWithStruct
Updated CLI test with all the things
Add missing filter.psv
Doc on DateTimeUtil
Remove default args from Reductions
Added canary ci script.
Set value.
Explicit creds.