Paul Tremberth 1075587dbd Add support for Sphinx 1.4 ...

See http://www.sphinx-doc.org/en/stable/changes.html#release-1-4-released-mar-28-2016

sphinx_rtd_theme has become optional, needs to be added to reqs

https://github.com/sphinx-doc/sphinx/pull/2320 changes node entries tuples
to 5 values instead of 4

`sh` syntax highlighting added very locally in selectors.rst
because of this warning/error with Sphinx 1.4:

```
Warning, treated as error:
/home/paul/src/scrapy/docs/topics/selectors.rst:743:
WARNING: Could not lex literal_block as "python". Highlighting skipped.
```

2016-03-30 14:40:52 +02:00

..

scrapydocs.py

Add support for Sphinx 1.4

2016-03-30 14:40:52 +02:00