Pagecontainer: Escape dataUrl when trying to find page based on it

Closes gh-7474
Fixes gh-1383

Author: Gabriel Schulhof

js/widgets/pagecontainer.js

@@ -362,7 +362,8 @@ define( [
 			// NOTE do _not_ use the :jqmData pseudo selector because parenthesis
 			//      are a valid url char and it breaks on the first occurence
 			page = this.element
-				.children( "[data-" + this._getNs() +"url='" + dataUrl + "']" );
+				.children( "[data-" + this._getNs() +
+					"url='" + $.mobile.path.hashToSelector( dataUrl ) + "']" );
 
 			// If we failed to find the page, check to see if the url is a
 			// reference to an embedded page. If so, it may have been dynamically