Upgrade to Sphinx 1.7.6

[jdemeyer]

Tarball: https://files.pythonhosted.org/packages/eb/3c/702e89ad33529c0107d44ebc1a7eca97c4fd77ae2784060923a65864fcbd/Sphinx-1.7.6.tar.gz

CC: @embray @kiwifb

Component: packages: standard

Author: Jeroen Demeyer

Branch/Commit: 9508f39

Reviewer: Erik Bray

Issue created by migration from https://trac.sagemath.org/ticket/26033

[jdemeyer]

Branch: u/jdemeyer/upgrade_to_sphinx_1_7_6

[kiwifb]

New commits:

9508f39

Upgrade to Sphinx 1.7.6

[kiwifb]

Commit: 9508f39

[embray]

comment:4

Assuming you've tested this, then I can't imagine any reason not to.

[jdemeyer]

comment:5

Is that a rephrasing of "positive review"?

[embray]

comment:6

It means, "I haven't tested this myself because too lazy, but if you have and it worked then feel free to set positive review".

[embray]

Reviewer: Erik Bray

[vbraun]

Changed branch from u/jdemeyer/upgrade_to_sphinx_1_7_6 to 9508f39