Add soft checks to FE code via danger
With the introduction of Danger, we can use it to do soft checks of things we normally check while reviewing as reviewers and/or maintainers.
Please add ideas by commenting in this issue so we can prioritize implementation. The goal is to make reviews more consistent and raise the quality bar of MRs reaching reviewers/maintainers.
Example: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/21859
Edited by André Luís