Win 8.1

- hub sections
- support split screen
- hub section hero

Conflicts:

	IdeaPress/IdeaPress.jsproj
	IdeaPress/css/default.css
	IdeaPress/css/themes/custom.dark.css
	IdeaPress/js/options.js
	IdeaPress/modules/wordpress/js/wp.module.js
clean up and bug fix

Conflicts:

	IdeaPress/IdeaPress.jsproj
	IdeaPress/js/options.js
	IdeaPress/modules/wordpress/css/wp.module.css
	IdeaPress/modules/wordpress/js/wp.module.js
win 8.1 on appfactory branch