Syncing changelog

Merge branch 'master' into develop

Fixing appveyor master version

Merge pull request fluentribbon#297 from fluentribbon/develop

Bumping version to 4.0.3

Fixes fluentribbon#294 by removing OverridesDefaultStyle on some styles

Fixes fluentribbon#293 by checking the container for null

Merge pull request fluentribbon#292 from fluentribbon/develop

Merge v4.0.0 content to master

Fixing markdown of changelog

Bumping version to 3.6.0 and adding changelog

Bumping version to 3.5.1 and finishing changelog