[css-align] Revert to ED

Author: fantasai

css-align/Overview.bs

@@ -4,7 +4,7 @@
 Shortname: css-align
 Level: 3
 Group: csswg
-Status: WD
+Status: ED
 Work Status: Revising
 Date: 2014-12-18
 ED: http://dev.w3.org/csswg/css-align/