Andrew Bonventre 79a4f79ee8 Update Polymer to 1.2.4
Also pulls in an updated webcomponentjs (0.7.20) and
polymerelements/test-fixture (1.1.0)

Change-Id: I666d58582884b05231b2db8d16b79ab1c9a5bcf8
2016-02-19 17:21:13 +00:00
..
2016-02-19 17:21:13 +00:00