Add flake8 and fix errors.

Signed-off-by: Daniel Nephin <dnephin@gmail.com>
Run flake8 in travis build

Signed-off-by: Daniel Nephin <dnephin@gmail.com>
Ship 0.5.2

Signed-off-by: Aanand Prasad <aanand.prasad@gmail.com>
Merge pull request #358 from orchardup/ship-0.5.2

Ship 0.5.2
Add "update the website" step to release process

Signed-off-by: Aanand Prasad <aanand.prasad@gmail.com>
Merge pull request #361 from orchardup/update-release-process

Add "update the website" step to release process
Merge pull request #353 from dnephin/add_flake8

Add flake8
Add flake8 to test script

For those who don't use tox.

Signed-off-by: Ben Firshman <ben@firshman.co.uk>
Merge pull request #362 from orchardup/add-flake8-to-test-script

Add flake8 to test script
Update dockerpty -> 0.2.3

Signed-off-by: d11wtq <chris@w3style.co.uk>