R1:f2fcafb40dde

Help PROFESSIONAL SOFTWARE ENGINEERS copy text to their clipboard

Summary: Ref T12780. I'd like 18,000 GitHub stars now please thank you

Test Plan: this feature is awful

Reviewers: chad

Reviewed By: chad

Subscribers: cspeckmim

Maniphest Tasks: T12780

Differential Revision: https://secure.phabricator.com/D18053