Lazy $apollo

package.json

@@ -1,6 +1,6 @@
 {
   "name": "vue-apollo",
-  "version": "1.0.0-beta11",
+  "version": "1.0.0-beta.12",
   "description": "Vue apollo integration",
   "main": "index.js",
   "scripts": {

src/vue-plugin.js

@@ -159,7 +159,15 @@ class DollarApollo {
 function prepare() {
   this._apolloSubscriptions = [];
 
-  this.$apollo = new DollarApollo(this);
+  // Lazy creation
+  Object.defineProperty(this, '$apollo', {
+    get: () => {
+      if(!this._apollo) {
+        this._apollo = new DollarApollo(this);
+      }
+      return this._apollo;
+    }
+  });
 }
 
 function launch() {
@@ -201,8 +209,8 @@ module.exports = {
           sub.unsubscribe();
         });
         this._apolloSubscriptions = null;
-        if (this.$apollo) {
-          this.$apollo = null;
+        if (this._apollo) {
+          this._apollo = null;
         }
       }