Wrapped line to bring it within 80 chars.
This change will bring back green builds in travis.
Before
------
```
$ flake8 .
$ ./docs/conf.py:110:80: E501 line too long (80 > 79 characters)
```
After
-----
```
$ flake8 .
$
```
Merge pull request #100 from JacobCallahan/master

Wrapped line to bring it within 80 chars.