fix UntilRecurType toString method to process dates in the correct format, add UNTIL/COUNT exclusions in RecurType setters
this logic was previously handled at a higher level
add normalize to UntilRecurType dateTime element
fix recurType contructor to handle date and dateTime UNTIL tokens, add UntilRecurType date constructor
rebuild with NB 7.4 - updating build files
improve documentation in UntilRecurType
update UntilRecurType to accommodate Telcordia bug

Telcordia cannot read the standards-compliant xsd:date format. Always force return the xsd:date-time format to accommodate.
add XML adapters to UntilRecurType to correctly write xCal-specific formats for DATE and DATE-TIME
add XML adapters to correctly marshal xCal-specific formats for DATE and DATE-TIME
complete xCal modifications, fix UtcOffsetPropertyType constructor and setter
xCal modifications, add XMLAdapter to date-time fields
remove XmlJavaTypeAdapters from DatetimePropertyType to accommodate Bedework non-standard XSD
improve class documentation
trivial fix to hashcode
update various properties and components with enhanced constructors, also rename enumerated types with E- prefix
first build of ICalendarUtil
production candidate for ICalendarUtil with calculateRecurrenceSet method for RRULE