Some useful bug fixes (T380393, T378908) and features were added in the last few months. It is time for another rc release.

1. mwtitle (not worth a release)
2. mwtimestamp (not worth a release)
3. wikipedia_prosesize (not worth a release)
4. mwapi
5. mwapi_responses_derive
6. mwapi_responses
7. parsoid
8. mwbot_derive
9. mwbot