Update polymer in sheriff-o-matic.

Apparently 0.4.0 changed out from under us.

-ct-step-failure-card can't be noscript and have script in it.
-paper-button's label property is deprecated.
-paper-button lost its intrinsic padding.

TBR since anyone updating bower will have problems without this.

NOTRY=true
TBR=leviw@chromium.org

Review URL: https://codereview.chromium.org/627663005

git-svn-id: svn://svn.chromium.org/blink/trunk@183235 bbb929c8-8fbe-4397-9dbb-9b2b20218538