build: Update eslint-config-wikimedia to 0.9.0

Change-Id: I3ea907f6ef3b6337c1e793668ae889610fc6a635

.eslintrc.json

@@ -1,10 +1,9 @@
 {
-	"extends": "wikimedia",
-	"env": {
-		"browser": true
-	},
+	"extends": [
+		"wikimedia/client",
+		"wikimedia/jquery"
+	],
 	"globals": {
-		"$": false,
 		"mw": false
 	}
 }

collapsibleTabs.js

@@ -95,7 +95,7 @@
 			return settings;
 		},
 		handleResize: function () {
-			$.each( $.collapsibleTabs.instances, function ( i, $el ) {
+			$.collapsibleTabs.instances.forEach( function ( $el ) {
 				var data = $.collapsibleTabs.getSettings( $el );
 				if ( data.shifting ) {
 					return;

package.json

@@ -5,7 +5,7 @@
 		"doc": "jsduck"
 	},
 	"devDependencies": {
-		"eslint-config-wikimedia": "0.8.1",
+		"eslint-config-wikimedia": "0.9.0",
 		"grunt": "1.0.3",
 		"grunt-banana-checker": "0.6.0",
 		"grunt-eslint": "21.0.0",