1.0.0-beta.24

• Fixed event handlers conflict across Discovery instances
• Fixed popup view styles when Discovery's container is not a document body
• Added wrapping for a string value that outputs as a plain text in struct view
• Changed App#render() and Widget#render() methods to return a render state promise
• Changed PageRenderer#render() method to return { pageEl, renderState } object instead of just newPageEl
• Added optional parameter for Widget constructor to specify default page layout, i.e. new Widget(container, defaultPage, options)
• Added extensions and compact options to Widget/App constructor, i.e. new Widget(el, null, { extensions, compact })
• Renamed dist files: lib.* -> discovery.*
• Improved build by CSS styles basic isolation, to reduce impact on host environment when integrate into