Screenshot testwatcher
Merge https://github.com/devhub-tud/devhub into screenshot-watcher
Merge https://github.com/devhub-tud/devhub into screenshot-watcher
Improved file explorer tests
Merge pull request #39 from JWGmeligMeyling/screenshot-watcher

Screenshot watcher + file explorer test improvement
Merge https://github.com/devhub-tud/devhub into mocked-server