Range-diff !424

back to !424 mr: labels on merge requests

1:  06f7e4d = 1:  06f7e4d store: labels on merge requests
2:  7d5f133 = 2:  7d5f133 control: mr label, and mr list --label
3:  f99b620 = 3:  f99b620 web: labels on the merge request page and list
4:  c6c5cb3 = 4:  c6c5cb3 e2e, wiki: merge request labels
-:  ------- > 5:  e5dee0c Review fixes: label counts, comment placement, wrapping