style: use monospace for 'formatted-fixed' class The 'formatted-fixed' class is applied to PR comments, PR descriptions and repository descriptions. It already preserves whitespace via 'whitespace: pre-wrap', but the font is not monospace. As a result, diagrams or other ASCII art do not display well. Use monospace on this class to fix that.

babel >= 0.9.6, < 2.4
waitress >= 0.8.8, < 1.0
pytest ~= 3.0, >= 3.3.0
pytest-runner
pytest-sugar>=0.7.0
pytest-benchmark
pytest-localserver
mock
sphinx
webtest < 3