feat(rtl): add sass var $include-rtl

ionic/components/item/item.ios.scss

@@ -220,3 +220,17 @@ ion-item-divider {
 ion-item-sliding {
   background-color: $item-ios-sliding-content-bg;
 }
+
+// iOS item right-to-left
+// --------------------------------------------------
+@if $include-rtl {
+  @at-root {
+
+    .rtl.ios {
+
+      // todo
+
+    }
+    
+  }
+}

ionic/globals.core.scss

@@ -5,3 +5,7 @@
 
 // Global Mixins
 @import "util/mixins";
+
+
+// Global include-rtl
+$include-rtl: true !default;

scripts/e2e/e2e.template.html

@@ -34,6 +34,11 @@
     if (location.href.indexOf('cordova=true') > -1) {
       window.cordova = {};
     }
+    if (location.href.indexOf('rtl=true') > -1) {
+      document.dir = 'rtl';
+    } else {
+      document.dir = 'ltr';
+    }
   </script>
 
   <style>
@@ -88,6 +93,12 @@
   </ion-app>
 
   <script>
+    if (document.dir === 'rtl') {
+      document.body.classList.add('rtl');
+    } else {
+      document.body.classList.remove('rtl');
+    }
+
     System.import('index.js').then(function(m) {}, console.error.bind(console));
     console.timeEnd('script init');
   </script>