Several clean ups:

- add make_config.py to scripts/ and to make publish
- sub body.txt for body.html
- add domains.json in inputs
- init make_instructions.txt
- minor updates in publish.py , translate_href-html.py and translate_href-ipynb.py
A few minor improvements

- add navigation links to s7
- sub '&' for 'and' in chapter/section names!
- update `make_config.py`
- correct plotly-ext to plotly-int translation
generalize publish.py and translate_href-html.py
add make_instruction.md
post-pages merge updates
fix typo in s0, support new case in translate_href-html.py
Split published/ into includes/ and python_urls.py

- add scripts/make_urls.py
- modif tree in scripts/publish.py and make_config.py
- modif makefile accordingly
add untracked files from previous commit
minor python_urls modif for Jody
add make_sitemaps.py
update Readmes
add newline in auto-gen files
sync with streambed
Merge pull request #2 from plotly/docs5.0-generalized

Docs5.0 generalized