R1:eaa2ff71d303

Minify static resources

Summary: For production servers, minify CSS and JS by stripping comments, whitespace, etc.

Test Plan: Looked at CSS/JS, it was much smaller.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran, epriestley

Maniphest Tasks: T264

Differential Revision: https://secure.phabricator.com/D2034