Summary:
Ref T2787.
- Allow merchants to disable payment providers.
- Show more useful information about providers on the payments page.
- Make test vs live more clear.
- Show merchant status.
- Add a description to merchants to flesh them out a bit -- the merchant areas of responsibilities seem to be fitting well with accounts, etc.
Test Plan: {F215109}
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T2787
Differential Revision: https://secure.phabricator.com/D10662
