fixed bugs as a result of move to new dataset
fixed loading of dates
fixed bug where <= and >= were reversed
updated options to resolve sorting errors
play logs now show the stack trace
added option wrapper class for double options

this is to enable field by field averaging to reduce the number of NoDatas when there is a large aggregation
fixed compile errors and added toWrappedDoubleOrNone method to DoubleOption
put wrapped double options into use