documenting and tagging v1.5.0 release

Author: Tom Van Cutsem

Diff for: README.md

@@ -146,6 +146,10 @@ This library differs from the [ECMAScript 2016 spec](http://www.ecma-internation
 
   * In ES7, the `enumerate()` trap, and the corresponding `Reflect.enumerate()` method, have been [removed](https://github.com/tc39/ecma262/issues/161).
     This shim still supports the trap.
+  * The ES7 (and ES6) spec contains a 
+    [bug](https://github.com/tc39/ecma262/pull/666) that leads to missing
+    invariant checks in the getOwnPropertyDescriptor, defineProperty and deleteProperty traps. This library already contains the patch referred
+    to in [this issue](https://github.com/tc39/ecma262/pull/666).
 
 This library differs from the [ECMAScript 2015 spec](http://www.ecma-international.org/ecma-262/6.0/) as follows:
 

Diff for: RELNOTES.md

@@ -1,3 +1,12 @@
+v1.5.0
+======
+
+Release date: August 17th, 2016
+
+  * Added [missing proxy invariant checks](https://github.com/tc39/ecma262/pull/666)
+    in getOwnPropertyDescriptor, defineProperty and deleteProperty traps.
+  * Add typings for Reflect for TypeScript users.
+  
 v1.4.6
 ======
 

Diff for: package.json

@@ -1,6 +1,6 @@
 {
   "name": "harmony-reflect",
-  "version": "1.4.6",
+  "version": "1.5.0",
   "description": "ES5 shim for ES6 (ECMAScript 6) Reflect and Proxy objects",
   "main": "reflect.js",
   "keywords": [