Merge pull request #850 from rleigh-dundee/travis-python-dev50

travis: Remove python version requirement
Update auto-generated documentation

Repository: openmicroscopy/bioformats
Already up-to-date.

Generated by BIOFORMATS-5.0-autogen-docs#136 (http://ci.openmicroscopy.org/job/BIOFORMATS-5.0-autogen-docs/136/)