Summary:
Ref T7643. When a large block of prose text is edited (like a wiki page), summarize the diff when sending mail.
For now, I'm still showing the whole thing in the web UI, since it's a bit more manageable there.
Also try to fix newlines in Airmail.
Test Plan:
This web diff:
{F1682591}
..became this mail diff:
{F1682592}
Reviewers: chad
Reviewed By: chad
Maniphest Tasks: T7643
Differential Revision: https://secure.phabricator.com/D16098
fb156af480