[css-timing] Add FPWD metadata for publication

Author: birtles

css-timing/Overview.bs

@@ -1,12 +1,14 @@
 <h1>CSS Timing Functions Level 1</h1>
 
 <pre class=metadata>
-Status: ED
+Status: FPWD
+Date: 2017-02-21
 Work Status: Refining
 Shortname: css-timing
 Level: 1
 Group: csswg
 ED: https://drafts.csswg.org/css-timing/
+TR: https://www.w3.org/TR/css-timing-1/
 Editor: Brian Birtles 43194, Mozilla https://www.mozilla.org, bbirtles@mozilla.com
 Editor: Dean Jackson, Apple Inc https://www.apple.com/, dino@apple.com
 Editor: Matt Rakow, Microsoft