On a secret mission
list of demo page of widgets and example us their usage.
working on querystring pattern.
adding more then needed documentation about Mockup and how to work with it.
There is no need to compile resources and copy them over to python package while developing. This copying part was never ment to stay, but was easiest thing to do until this kind of integration will happen.
Soon this will be also possible for plone.app.toolbar, plone.app.standardtiles and plone.app.deco.
While most of the work is already in master some of it is still in pull requests or waiting to be merged from branches. You can expect new releases of plone.app.widgets / plone.app.toolbar to come out early next week.