Support python 2.7 & 3+, resolves #270

orthofinder/orthofinder.py

orthofinder/scripts/blast_file_processor.py

orthofinder/scripts/files.py

orthofinder/scripts/mcl.py

orthofinder/scripts/orthologues.py

orthofinder/scripts/parallel_task_manager.py

orthofinder/scripts/program_caller.py

orthofinder/scripts/stag.py

orthofinder/scripts/stride.py

orthofinder/scripts/tree.py

orthofinder/scripts/trees2ologs_dlcpar.py

orthofinder/scripts/trees2ologs_of.py

orthofinder/scripts/trees_msa.py

orthofinder/scripts/util.py

orthofinder/scripts/wrapper_phyldog.py