Merge pull request #5 from rubak/master

Tuomas' optimized VB fitter.
Improvements to profilepl.

   connected.ppp.Rd
   Triplets.Rd
      Improved examples.

   profilepl.R
   spatstat-internal.Rd
     More improvements to plot method.

   NEWS
   DESCRIPTION
    updated.
    Temporary version number: 1.39-1.017
Self-starting feature for hybrid models and bug fix.

   mpl.R
   spatstat-internal.Rd
	Bug fix in evalInterEngine - handling of 'Reach' argument

  hybrid.R
        Hybrid models now apply the 'self-starting' feature
	to each component interaction.

   NEWS
   DESCRIPTION
    updated.
    Temporary version number: 1.39-1.019
Various improvments and bug fixes.

   ppmclass.R
      print.ppm no longer computes variances
      if the model was fitted with method='logi', VB=FALSE.

   evalcovar.R
   spatstat-internal.Rd
      evalCovar has new argument 'lambdatype' passed to predict.ppm

   cdftest.R
   cdf.test.Rd
   spatstat-internal.Rd
      cdf.test.ppm and cdf.test.lppm now handle Gibbs models
      and perform a Monte Carlo test.

   lurking.R
   lurking.Rd
      lurking variable plot can now include simulation envelopes.

   diagnoseppm.R
   diagnose.ppm.Rd
   spatstat-internal.Rd
      diagnose.ppm can now produce simulation envelopes.

   weights.R
      bug fixes

   lurking.R
      Fixed bug arising in rare cases.

   NEWS
   DESCRIPTION
    updated.
    Temporary version number: 1.39-1.020
Tweaked ppm output and plot(fitin(model)) is now possible for some
higher-order interactions.

   ppmclass.R
   summary.ppm.R
      print.ppm and print.summary.ppm will now display
      'Log intensity:' or 'Log trend:' instead of 'Trend formula:'

   fii.R
   areainter.R
   geyer.R
   fitin.Rd
      plot(fitin(model)) is now possible for some higher-order interactions.

   NEWS
   DESCRIPTION
    updated.
    Temporary version number: 1.39-1.021
New argumnent 'fine' in vcov.ppm (replacing hidden argument 'A1dummy'.

   vcov.ppm.R
   vcov.ppm.Rd
      Secret argument 'A1dummy' replaced by formal argument 'fine'.

   NEWS
   DESCRIPTION
    updated.
    Temporary version number: 1.39-1.022
Bugfixes.

   rVarGamma.Rd
     Corrections from Ege.

   areainter.R
     Bug fix in plotting fitted interaction.

   ippm.R
     Corrected an error message
     (even the errors are wrong!!)

   NEWS
   DESCRIPTION
    updated.
    Temporary version number: 1.39-1.023
Self-start feature for MultiHard and MultiStraussHard.

   multihard.R
   multistrhard.R
	MultiHard and MultiStraussHard now estimate their hard core distances
	using the self-start feature.

   NEWS
   DESCRIPTION
    updated.
    Temporary version number: 1.39-1.024
Bugfix in hierstrauss.

   hierstrauss.R
     Bug fix in testing validity of fitted model.

   NEWS
   DESCRIPTION
    updated.
    Temporary version number: 1.39-1.025
Bugfix in clickppp.

   clickppp.R
       Bug fix - filled the window in solid black if it was a mask.

   NEWS
   DESCRIPTION
    updated.
    Temporary version number: 1.39-1.026
Bugfix in predict.mppm.