Property page header and sidebar state updates.

 On branch marionette_integration
	modified:   app/assets/javascripts/backbone/apps/left_sidebar/left_sidebar_app.js.coffee
	modified:   app/assets/javascripts/backbone/apps/left_sidebar/show/show_view.js.coffee
	modified:   app/assets/javascripts/backbone/apps/left_sidebar/show/templates/show_nav.jst.hbs
	modified:   app/assets/javascripts/backbone/apps/properties/layout/layout_controller.js.coffee
	modified:   app/assets/javascripts/backbone/apps/properties/layout/layout_view.js.coffee
	new file:   app/assets/javascripts/backbone/apps/properties/layout/templates/property_header.jst.hbs
	modified:   app/assets/javascripts/backbone/apps/properties/properties_app.js.coffee
	modified:   app/assets/javascripts/backbone/entities/property.js.coffee
	new file:   app/assets/stylesheets/components/left_sidebar.css.scss
	new file:   app/assets/stylesheets/components/page_title.css.scss