v4.1

WPS Version 4.1

This release includes the following notable changes:

* The addition of support for a MODIS 15-arc-second land use dataset with lakes.
  - This dataset is described in

    Broxton, P. D., Zeng, X., Sulla-Menashe, D., & Troch, P. A. (2014). A global
    land cover climatology using MODIS data. Journal of Applied Meteorology and
    Climatology, 53(6), 1593-1605. DOI: 10.1175/JAMC-D-13-0270.1

    and may be activated by prepending the geog_data_res namelist option with
    'modis_15s_lake+' after downloading the dataset.

* The addition of initial support for POWER systems running Linux with the XL
  compilers.

* Adjustments to the RH field from GEFS data to be w.r.t. liquid water, as is
  done for GFS, CDAS, and ECMWF.

* A change in the default mean sea-level pressure field from smooth PRMSL to
  unsmoothed MSLET for GFS datasets.

* Corrections to the rotation of horizontal wind vectors that are provided on
  a Cassini/rotated lat-lon projection.