[FIRST] customcss and overviewpub
[FIRST] plotlystreampub
[FIRST] converted overviewpub and plotlystreampub to html
Merge branch 'master' into docs5.0-ready

- after Chuck's add-ons
Ready 2 NB for plot.ly!

- overviewpub.ipynb -> user-guide/
- plotlystreampub.html -> streaming-tutorial/
- add strip_title in publish.py
- modif strip_last_pre in publish.py
- better make_config.py
modif streaming-tutorial meta descrip