Summary:
Ref T3886. Ref T418. For fields like "Summary" and "Test Plan" where changes can't be summarized in one line, allow CustomField to provide a "(Show Details)" link and render a diff.
Also consolidate some of the existing copy/paste, and simplify this featuer slightly now that we've move to dialogs.
Test Plan:
{F115918}
- Viewed "description"-style field changes in phlux, pholio, legalpad, maniphest, differential, ponder (questions), ponder (answers), and repositories.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T3886, T418
Differential Revision: https://secure.phabricator.com/D8284
88227d26bc