phi1-h

Results 2 issues of phi1-h

When working with the node-red-nodes-test-helper I stumbled on the change node, which does not call the second on 'input' callback. ``` const other_node = helper.getNode('other'); other_node.on('input', function(msg:Object){ done() }) other_node.receive({})...

### Description The progressbar stays empty ### Expected outcome The progressbar shows "the loading" bars ### Actual outcome The progressbar stays empty ### Live Demo https://www.webcomponents.org/element/PolymerElements/paper-progress The top two bars...