Merge pull request #17 from OpenScienceFramework/flake8_justification

Flake8 justification
Merge pull request #18 from OpenScienceFramework/docs

Docs
html converter
Merge branch 'master' of https://github.com/OpenScienceFramework/pydocx into parse_html
added Docx2XML; made changes to htmlconverter
flake 8 compliant