Calculates accuracy in TimeMLProcessor
Factors out TimeML parsing code from TimeMLProcessor
Factors out TimeNormalizer from TimeMLProcessor
Fixes bug in test grammar which allowed '14 days' to be parsed as FindEnclosing(...)
Handles unparseable anchor times a bit better
Adds tokenization support for YYYYMMDD times (typically only appearing in doctimes)
Allows years in the 50-99 2-digit range