Update embind to work with Closure Compiler

Several names within the embind JavaScript itself need to be guarded from name
mangling in the Closure Compiler.

With this commit, the embind tests will now pass in the Closure Compiler test
phase.

Author: rharkeadsk

src/embind/embind.js

@@ -2098,29 +2098,29 @@ var LibraryEmbind = {
         Object.defineProperty(this, '__parent', {
             value: wrapperPrototype
         });
-        this.__construct.apply(this, arraySlice.call(arguments));
+        this["__construct"].apply(this, arraySlice.call(arguments));
     });
 
     // It's a little nasty that we're modifying the wrapper prototype here.
 
-    wrapperPrototype.__construct = function __construct() {
+    wrapperPrototype["__construct"] = function __construct() {
         if (this === wrapperPrototype) {
             throwBindingError("Pass correct 'this' to __construct");
         }
 
-        var inner = baseConstructor.implement.apply(
+        var inner = baseConstructor["implement"].apply(
             undefined,
             [this].concat(arraySlice.call(arguments)));
         var $$ = inner.$$;
-        inner.notifyOnDestruction();
+        inner["notifyOnDestruction"]();
         $$.preservePointerOnDelete = true;
-        Object.defineProperty(this, '$$', {
+        Object.defineProperties(this, { $$: {
             value: $$
-        });
+        }});
         registerInheritedInstance(registeredClass, $$.ptr, this);
     };
 
-    wrapperPrototype.__destruct = function __destruct() {
+    wrapperPrototype["__destruct"] = function __destruct() {
         if (this === wrapperPrototype) {
             throwBindingError("Pass correct 'this' to __destruct");
         }