added some fb tags not present in appjet

lib-app/facebook-ext.js

@@ -11,6 +11,7 @@ importTags(this, [
 "FB:INTL-TOKEN",
 "FB:TAG-ATTRIBUTE",
 "FB:TAG-BODY",
+"FB:FBML-ATTRIBUTE",
 "FB:TAG",
 "FB:DATE",
 "FB:WALL",