Summary:
There's currently no way to get here from the UI since nav tabs don't exist anymore. It's also always been hard to find this feature even when we had the tabs, since it's surprising that it's inside "MetaMTA".
- Move mailing lists to a separate application.
- Add `buildApplicationPage()`, since we don't really need `buildStandardPageResponse()` any more -- we can infer all the information from `PhabricatorApplication`. This will let us get rid of a lot of the `PhabricatorXXXController` classes which just define application information.
- Add `getApplicationURI()` to reduce code duplication, and in case we want to let you move applications around some day.
Test Plan: Looked/edited/saved mailing lists.
Reviewers: btrahan, vrana
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T631
Differential Revision: https://secure.phabricator.com/D3248
74b438db13