growR 1.2.0

Added

• Green biomass has a lower bound defined by a minimum grass height. This is
  to prevent the population from completely dying out and effectively
  simulates reserves.

Changed

• The start of the growing season is now determined by the multicriterial
  thermal definition as described in chapter 2.3.1.3 of the dissertation of
  Andreas Schaumberger:
  Räumliche Modelle zur Vegetations- und Ertragsdynamik im
  Wirtschaftsgrünland, 2011, ISBN-13: 978-3-902559-67-8

Removed

• compare.R script is not fetched by setup_directory().