vtype: adding factory methods for Alarm
vtype: adding factory methods for Time
vtype: adding factory methods for Display
vtype: adding factory methods for VDouble
util et al: reviewing Range and Statistics
util: adding range factory method
util: adding toString to Range
util: adding equals to Range
util: utility method to test if the range is finite
graphene: using new Range.isFinite
util: adding normalize method
formula: using new Range.normalize
util: removing old methods
util: adding Range.contains
formula: using new range method
graphene: using new range method
graphene: using range.equals
util: removing old methods
util: adding contains test for ranges
util: removing old methods