[popup] "detached retina" fix - the window height on iStuff with a re…

…tina display seems to fluctuate by one pixel during scroll, causing a spurious resize event right after popup open, even though window size is constant during the entire opening sequence

Conflicts:

	js/widgets/popup.js

js/widgets/popup.js

@@ -131,13 +131,13 @@ define( [ "jquery",
 
 		_handleWindowResize: function( e ) {
 			if ( this._isOpen ) {
-				if ( !this._ui.container.hasClass( "ui-selectmenu-hidden" ) ) {
+				if ( ( this._maybeRefreshTimeout() || this._orientationchangeInProgress ) &&
+					!this._ui.container.hasClass( "ui-selectmenu-hidden" ) ) {
 					// effectively rapid-close the popup while leaving the screen intact
 					this._ui.container
 						.addClass( "ui-selectmenu-hidden" )
 						.removeAttr( "style" );
 				}
-				this._maybeRefreshTimeout();
 			}
 		},
 
@@ -525,6 +525,7 @@ define( [ "jquery",
 			// the "blue flash" of element focus in android 4.0
 			setTimeout(function(){
 				self._ui.container.attr( "tabindex", "0" ).focus();
+				self._maybeRefreshTimeout();
 				self._trigger( "afteropen" );
 			});
 		},