make "Land to..." button call diffusion.looksoon
Summary:
add looksoon call after every attempt at landing.
This includes failed attempts, to elevate "not a fast-forward" issues, although there are probably smarter things to be done about that.
Test Plan: Land, look at logs.
Reviewers: Blessed Reviewers, epriestley
Reviewed By: Blessed Reviewers, epriestley
Subscribers: epriestley, Korvin
Differential Revision: https://secure.phabricator.com/D9518