Fix up polymer version constraints

As pointed out in https://github.com/google/stagehand/issues/269 I mixed these up

rev to 0.2.3; capture polymer template changes

update for polymer 1.0-rc1 (DO NOT MERGE)

remove the web-full example

BUG=

Review URL: https://codereview.appspot.com/261330043 .

bump the stagehand version

Regularizing the <script> location in web app templates

0.2.2

use dart_to_js_script_rewriter in web-simple

Devoncarew console simple

update to grinder 0.7.1

Runs all generators, even if one fails
Updated travis.sh

bump the stagehand version; update changelog

Validate that the tests pass as part of the grinder test task

test on Dart stable and dev

define version constraint for unittest in console-full template