Version bump to 2.3.20

Author: mattpodwysocki

bower.json

@@ -1,6 +1,6 @@
 {
   "name": "rxjs",
-  "version": "2.3.19",
+  "version": "2.3.20",
   "main": [
     "dist/rx.all.js",
     "dist/rx.all.map",

package.json

@@ -2,7 +2,7 @@
   "name": "rx",
   "title": "Reactive Extensions for JavaScript (RxJS)",
   "description": "Library for composing asynchronous and event-based operations in JavaScript",
-  "version": "2.3.19",
+  "version": "2.3.20",
   "homepage": "https://github.com/Reactive-Extensions/RxJS",
   "author": {
     "name": "Cloud Programmability Team",