Paper button hover event
<p>I wanted to fire some additional information when a Paper button is hovered, and not necessarily pressed.  I am currently aware of:  <code>on-tap="myFunc"</code> when defining the function, but when looking at the Polymer docs, I did not really see anything about <em>on-hover</em>.  I could be looking in the wrong place</p>

<p>I noticed that Paper Button is-a <em>HtmlElement</em> when looking at the source of the paper-button.  I just cant really see where all of the event handlers are being set.</p>

<p>Is there an on-hover?  If so, where it is at?  Kid of tedious with there not being markup intellisense.</p>

<p>I was inspecting the Paper Button source, as well as looking into: <a href="https://elements.polymer-project.org/elements/paper-button?view=demo:demo/index.html&amp;active=paper-button" rel="nofollow">https://elements.polymer-project.org/elements/paper-button?view=demo:demo/index.html&amp;active=paper-button</a> but most of that is stylizing based and not really fired events from an on-hover</p>