don't vendor xhook; update xhook

This switches to using npm to manage xhook, which is about as good as
vendoring now that we have lockfiles.

This also updates some misc stuff int he lockfile, but notably updates
xhook several versions forward.

package.json

@@ -9,22 +9,25 @@
     "type": "git",
     "url": "https://github.com/jpillora/xdomain"
   },
-  "keywords": ["cors", "ie8", "polyfill"],
+  "keywords": [
+    "cors",
+    "ie8",
+    "polyfill"
+  ],
   "author": {
     "name": "Jaime Pillora",
     "email": "[email protected]"
   },
   "scripts": {
-    "dev":
-      "parcel watch --no-source-maps --public-url . src/browser.js -o xdomain",
-    "devfile":
-      "parcel watch --no-hmr --no-source-maps --public-url . src/browser.js -o xdomain",
-    "build":
-      "parcel build --public-url . src/browser.js --no-minify -o xdomain && parcel build src/browser.js --no-source-maps --detailed-report -o xdomain.min"
+    "dev": "parcel watch --no-source-maps --public-url . src/browser.js -o xdomain",
+    "devfile": "parcel watch --no-hmr --no-source-maps --public-url . src/browser.js -o xdomain",
+    "build": "parcel build --public-url . src/browser.js --no-minify -o xdomain && parcel build src/browser.js --no-source-maps --detailed-report -o xdomain.min"
   },
   "devDependencies": {
     "array.from": "^1.0.3",
     "parcel-bundler": "^1.7.0"
   },
-  "dependencies": {}
+  "dependencies": {
+    "xhook": "^1.4.9"
+  }
 }

src/browser.js

@@ -1,7 +1,7 @@
 if (!Array.from) {
   Array.from = require("array.from").getPolyfill();
 }
-const xhook = require("./vendor/xhook");
+const xhook = require("xhook").xhook;
 window.xhook = xhook;
 const xdomain = require("./index");
 window.xdomain = xdomain;

src/lib/master.js

@@ -1,4 +1,4 @@
-const xhook = require("../vendor/xhook");
+const xhook = require("xhook").xhook;
 const config = require("./config");
 const {
   currentOrigin,

src/lib/slave.js

@@ -1,4 +1,4 @@
-const xhook = require("../vendor/xhook");
+const xhook = require("xhook").xhook;
 const config = require("./config");
 const {
   log,

src/lib/socket.js

@@ -1,4 +1,4 @@
-const xhook = require("../vendor/xhook");
+const xhook = require("xhook").xhook;
 
 const config = require("./config");
 const { globalEmitter, log, warn, COMPAT_VERSION } = require("./util");

src/lib/util.js

@@ -1,4 +1,4 @@
-const xhook = require("../vendor/xhook");
+const xhook = require("xhook").xhook;
 
 const config = require("./config");