Added method to check if a date is within a GrowthPhaseType to plant, thus removing the need for the ugly getMinDate methods and moving knowledge of the phase-internals to the Plant class.
Also removed the need to specify the lifecycle-group to the sowDateFromHarvest method
Instead of generating a list of dates for every single visible date and checking if it is contained in that list, we now use a (admittedly scary-looking) predicate to compare the date to the start and enddates
giavaphi
David Guler