o drop.tip(), extract.clade(), root(), and bind.tree() now have an
'interactive' option to make the operation on a plotted tree.
+ o cophyloplot() gains two new arguments 'lwd' and 'lty' for the
+ association links; they are recycled like 'col' (which wasn't before).
+
BUG FIXES
o plot.phylo(type = "p") sometimes failed to colour correctly the
vertical lines representing the nodes.
+ o plot.phylo(direction = "l", x.lim = 30) failed to plot the branches
+ in the correct direction though the tip labels were displayed
+ correctly.
+
+
+OTHER CHANGES
+
+ o The c, cbind, and rbind methods for "DNAbin" objetcs now check that
+ the sequences are correctly stored (in a list for c, in a matrix
+ for the two other functions).
+
CHANGES IN APE VERSION 2.5