BUG FIXES
- o root() failed with resolve.root = TRUE when the root was already
- the specified root.
+ o root() failed with 'resolve.root = TRUE' when the root was
+ already the specified root.
o Several bugs were fixed in mlphylo().
+ o collapsed.singles() did not propagate the 'Nnode' and
+ 'node.labels' elements (thanks to Elizabeth Purdom for the fix.
+
OTHER CHANGES