Update the Element for Polymer 3.0 from Collaborne
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Lots of very interesting content.
</paper-expansion-panel>License
This software is licensed under the Apache 2 license, quoted below.
Copyright 2011-2015 Collaborne B.V. <http://github.com/Collaborne/>
Licensed under the Apache License, Version 2.0 (the "License"); you may not
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http://www.apache.org/licenses/LICENSE-2.0
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