Log Message:
py-html2text: updated to 2017.10.4

2017.10.4
* Fix 157: Fix images link with div wrap
* Fix 55: Fix error when empty title tags
* Fix 160: The html2text tests are failing on Windows and on Cygwin due to \ 
differences in eol handling between windows/*nix
* Feature 164: Housekeeping: Add flake8 to the travis build, cleanup existing \ 
flake8 violations, add py3.6 and pypy3 to the travis build
* Fix 109: Fix for unexpanded < > &
* Fix 143: Fix line wrapping for the lines starting with bold
* Adds support for numeric bold text indication in `font-weight`,
  as used by Google (and presumably others.)
* Fix 173 and 142: Stripping whitespace in crucial markdown and adding \ 
whitespace as necessary
* Don't drop any cell data on tables uneven row lengths (e.g. colspan in use)