Backports for 0.9.2

[Mixih]

The following pulls need backport documentation/backports for the bears 0.9.2 release:

• aa76d08 120bed0
  (needed: the pyflakes pin)
• 0c8c48e InvalidLinkBear.py: Increase default_timeout value
  - [ ] (when completed) AnnotationBear: Allow missing language setting #1100 moved to 0.9.3 since there is an urgent isntall fix here

[Mixih]

wait, pyflakesbear is new since 0.9 and thus we dont need the pyflakes backport right(since the radon fix should have fixed the issue)? If so, we're ready for release.

[jayvdb]

The uncontrollable part of the pyflakes problem was between autoflake(pyflakes) and radon(flake8).
autoflake pinned their pyflakes to 1.3, and we followed suite, which only temporarily solved our problem. The real problem was radon, which depended on flake8 without any version spec, and different versions of flake8 have different pinned versions of pyflakes.

[Mixih]

completed two issues moved.