chore(deps): update RxJS

Close angular#1839

Author: Brocco

addon/ng2/blueprints/ng2/files/package.json

@@ -21,7 +21,7 @@
     "@angular/platform-browser-dynamic": "2.0.0-rc.5",
     "@angular/router": "3.0.0-rc.1",
     "core-js": "^2.4.0",
-    "rxjs": "5.0.0-beta.6",
+    "rxjs": "5.0.0-beta.11",
     "ts-helpers": "^1.1.1",
     "zone.js": "0.6.12"
   },