v0.5.0 - Incus

New features

• ReadNetCDF() suports using NA in subset to refer to max or min value.

• ReadNetCDF()'s subset argument supports more complex queries. (see the help
  section at?ReadNetCDF()).

• ReadNetCDF() now has a simple date-time parser that is tried if the udunits2 package
  is not installed.

• GetSMNData() gains the ability to cache results in a file.

• Derivate() now can derive in a non-equispaced grid.

Bugfixes

• geom_contour_fill() imputation method is fixed for some special cases (#96; thanks @bergmul).

• predict.eof() handles complex value svd correctly.

• Accommodates new grid implementation of units (#105 thanks @pmur002).