Update version to 2.4.3

Disable 'import-order' by default #82

Update version to 2.4.1

Update pyflakes to 1.0.0

Merge pull request #74 from jcugat/update-pep8-naming

Updated 'pep8-naming' plugin to v0.3.2

Fix #68 (undefined errors list)

Always cleanup 'success' gutter marks before lint

Add new lint tool: pep257 0.4.1

Successful lint report with gutter marks blink (enabled by default)

New lint results highlight + reload settings on change