New method AIC.ppm using correction for pseudo-likelihood.

   ppmclass.R
   logLik.ppm.Rd
	New method AIC.ppm
	AIC.ppm and extractAIC.ppm now use Takeuchi's rule for the d.f.

   fii.R
   interact.R
   ppmclass.R
   spatstat-internal.Rd
     Shortened output from print.ppm etc
     for higher levels of spatstat.options('terse')

   spatstat.options.Rd
     Tweaked

   NEWS
   DESCRIPTION
    updated.
    Temporary version number: 1.39-1.011