o plot.phylo() did not recycle values of 'font', 'cex' and
'tip.color' correctly when type = "fan" or "radial".
+ o plot.phylo() ignored 'label.offset' when type = "radial", "fan", or
+ "unrooted" with lab4ut = "axial" (the placement of tip labels still
+ needs to be improved with lab4ut = "horizontal").
+
OTHER CHANGES