Minor improvements and bugfixes.

   plot.anylist.R
      Fixed layout bug in plot.imlist

   plot.ppm.R
     Adjusted to new syntax of predict.ppm

   vesicles.rda
      Rebuilt data with unitname = "nm"

   vesicles.Rd
      Minor tweak

   NEWS
   DESCRIPTION
    updated.
    Temporary version number: 1.39-1.009