karma-runner/karma

Bug Fixes

• client: fix issue with loaded on safari 10 (#3252) (571191c), closes #3198
• config: add test:unit npm script (#3242) (02f071d)

Chores

• remove support for node 6 (#3246) (8a83990), closes #3151

BREAKING CHANGES

• Drop Support for Node 6, to make it possible to use async/await in karma codebase.