regimes
if given in ape format, are appended to
phylo format as phy$regimes. If the ouchtree is a fitted
hansen object, regimes will automatically be imported
from it unless other regime choice is given here.
safe
mode for going from ape to ouch. After
converting, this writes to a temporary nexus file and
reads the tree back in, because phylo format does not
have a unique specification for a unique tree, resulting
in all kinds of silly problems when develo