Improvements in TravelTimesProcessor to make sure that don't get travel
times that are too slow. Key thing is being able to not use departure
times from terminals if they are before the scheduled time. This option
is important for agencies such as commuter rail since trains aren't
going to leave early and if it was determined that one did then most
likely it was a problem due to previous bad travel times.

Also changed UpdateTravelTimes so that most options are set via java
properties instead of via regular command line options.