AIC for model comparison in profilepl (and other minor things).

   profilepl.R
   profilepl.Rd
      New argument 'aic' makes it possible to compare models using AIC.

   profilepl.R
      plot method improved.
      improved y axis label.
      now recognises 'col', 'lwd', 'lty' and spatstat.options('par.fv')

   resolve.defaults.R
      graphicsPars('lines') is now defined

   ppmclass.R
      AIC.ppm avoids crash if matrix is singular.

   wingeom.R
     Bug fix in setminus.owin - crashed if result was empty
     (if input polygonal)

   mpl.R
     Bug fix in evalInteraction arising when quadschemes are split into blocks

   NEWS
   DESCRIPTION
    updated.
    Temporary version number: 1.39-1.013