Directional analysis tools: Rose diagram, circular density estimation,
and density method for 'pairorient'.

   pairwise.family.R
     slightly accelerated 'suffstat'
     (affects 'ho.engine')

   rose.R   [New file]
   rose.Rd  [New file]
   spatstat-internal.Rd
      Rose diagram (rose of directions).
      New method rose.density
      Added tick marks on circle.

   DESCRIPTION
     Modifications to adhere to CRAN policies

   circdensity.R [New file]
   circdensity.Rd [New file]
      Circular density estimation

   pairorient.R
   pairorient.Rd
      New argument 'cumulative=FALSE'.
      New algorithm for kernel estimation of probability density.
      Argument 'units' renamed 'unit' for consistency.

   NEWS
   DESCRIPTION
      Updated.