Corrected the namealias jsdoc plugin to not include PIXI-from-YUI docs.
This is because they lack corresponding javascript code and need the
'name' property to remain intact.
The namealias plugin gets jsdoc to detect lots of documentation it was not
correctly picking up due to the application of the `name` property. This
can be read about in
https://github.com/jsdoc3/jsdoc/issues/804#event-195287680 - this results
in _much_ more complete documentation generation, especially when
properties are defined in constructors.
