Update spec references to default instead of tip

Author: dirkschulze

matrix/index.html

@@ -10,7 +10,7 @@
       var respecConfig = {
           specStatus:           "MO",
           shortName:            "matrix",
-          edDraftURI:           "https://dvcs.w3.org/hg/FXTF/raw-file/tip/matrix/index.html",
+          edDraftURI:           "https://dvcs.w3.org/hg/FXTF/raw-file/default/matrix/index.html",
           editors:  [
               { name: "Dirk Schulze", mailto: "dschulze@adobe.com",
                 company: "Adobe Systems Inc.", companyURL: "http://adobe.com/" },