added method: parent_link added display of Duplication tag in print_node fixed logic in newick_format:   consolidated into a single method with a 3d $format option   format options include 'full', 'simple' and 'phylip'   added 'phylip' format (which does not allow internal naming on nodes     and limits the names on leaves to 20 characters and requires a distance     on all nodes (except the root), and does not understand quoted (") names
added method: parent_link
added display of Duplication tag in print_node
fixed logic in newick_format:
  consolidated into a single method with a 3d $format option
  format options include 'full', 'simple' and 'phylip'
  added 'phylip' format (which does not allow internal naming on nodes
    and limits the names on leaves to 20 characters and requires a distance
    on all nodes (except the root), and does not understand quoted (") names

etapanari/ensembl-compara,dbolser-ebi/ensembl-compara,dbolser-ebi/ensembl-compara,etapanari/ensembl-compara,ckongEbi/ensembl-compara,etapanari/ensembl-compara,Ensembl/ensembl-compara,kumarsaurabh20/ensembl-compara,danstaines/ensembl-compara,ckongEbi/ensembl-compara,Ensembl/ensembl-compara,danstaines/ensembl-compara,Ensembl/ensembl-compara,etapanari/ensembl-compara,Ensembl/ensembl-compara,dbolser-ebi/ensembl-compara,ckongEbi/ensembl-compara,Ensembl/ensembl-compara,Ensembl/ensembl-compara,danstaines/ensembl-compara,danstaines/ensembl-compara,kumarsaurabh20/ensembl-compara,danstaines/ensembl-compara,Ensembl/ensembl-compara,Ensembl/ensembl-compara,kumarsaurabh20/ensembl-compara,kumarsaurabh20/ensembl-compara