Fix the bold markup for the Sphinx summary.
Coding style: PEP8.
Merge pull request #137 from jrioux/codequality

Coding style: PEP8.
Print what pull request is being fetched
Update origin with each PR run

Fixes #140.
Merge pull request #141 from asmeurer/multiruns

Print what pull request is being fetched
Update year to 2013 everywhere
Bump version to 6
Report use2to3 errors.
Handle the case where a pull request is really an issue

In this case, a message is printed, and the pull request is skipped.  We skip
rather than die in this case so that we can gracefully move on to the next
pull request in the list.  This way, things like sympy-bot review 1000 1001
1002 1003 ... will just continue to the next pull request if one of them is
just an issue.

If a pull request is an issue, the pulls api gives 404, but the issues api
returns, so if we get 404, we check that, and if it exists, we conclude that
the pull request must really be an issue.

This closes #143.
Merge pull request #143 from asmeurer/issues

SymPy bot does not recognize when a "pull request" is really an issue
Merge pull request #146 from jrioux/reviews

Report use2to3 errors.
Handle cleanly the case when pull["head"]["repo"] returns None.

This may be linked to the user sending a PR from his master branch.
For example, see https://github.com/sympy/sympy/pull/1793
Merge pull request #148 from jrioux/reviews

Handle cleanly the case when pull["head"]["repo"] returns None.

This may be linked to the user sending a PR from his master branch.
For example, see sympy/sympy#1793