Fix deploy compile warning

Fix below warnings.
@ussuri 

warning line 8, column 1 of web/lib/ui/cde-fab/cde-fab.html: Missing definition for <polymer-element>, please add the following HTML import at the top of this file: <li
nk rel="import" href="../../../packages/polymer/polymer.html">. See http://goo.gl/5HPeuP#polymer_3 for details.
 warning line 3, column 56 of web/lib/ui/cde-fab/cde-fab.html: (from html5lib) Unexpected start tag (html). Expected DOCTYPE. See http://goo.gl/5HPeuP#polymer_40 for details.