Summary: It seems that there was a [[17cbfacae6 | recent-ish commit]] to the `JsShrink` external library. I'm not sure what this commit actually achieves, but we may as well bring it upstream.
Test Plan: Eyeball it.
Reviewers: vrana, epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: epriestley, Korvin
Differential Revision: https://secure.phabricator.com/D9414
Summary: If `jsxmin` is not available, use a pure PHP implementation instead (JsShrink).
Test Plan:
- Ran `arc lint --lintall` on all JS and fixed every relevant warning.
- Forced minification on and browsed around the site using JS behaviors. Didn't hit anything problematic.
Reviewers: vrana, btrahan
Reviewed By: vrana
CC: aran, Korvin
Differential Revision: https://secure.phabricator.com/D5670
