Docs 5.0 coming to MATLAB - first commit

- add makefile!
- modify .gitignore (now as in python-user-guide/)
- copy scripts/ from python-user-guide/
Set up makefile scripts

- add `make_config.py`
- add domain info in `domains.json`
- adapt `publish.py` to MATLAB (from python-user-guide/)
- adapt `translate_href-html.py` to MATLAB ("")
clean make publish
fix typo oveview --> overview
add image_map.py, clean publish run
add make_instruction, rename image-map.py to image_map.py:
fix typo in makefile
Merge pull request #2 from plotly/docs5.0-generalized

Docs5.0 generalized