function, pcoa, that does principal coordinate decomposition. The
latter has a biplot method.
+ o The new function lmorigin by Pierre Legendre performs multiple
+ regression through the origin with testing by permutation.
+
o The new functions rTraitCont and rTraitDisc simulate continuous and
discrete traits under a wide range of evolutionary models.
o dist.taxo() has been renamed as weight.taxo().
+ o dist.phylo() has been replaced by the method cophenetic.phylo().
+
o Various error and warning messages have been improved.