Bump version to MINOR release 1.11.0

Version 1.11.0 Release Notes:
Last feature release for v1.
* Add support for followup events
* Fix type annotation bugs
* Change No userStorage Found to debug message
* Remove en_* locale warning from askForSignIn
* Fix MEDIA_STATUS enum being incorrect

Change-Id: I250ad1f80bbe306a7ac19fcf53595963ed4b82c6

package.json

@@ -2,7 +2,7 @@
   "name": "actions-on-google",
   "description": "Actions on Google Client Library for Node.js",
   "main": "actions-on-google.js",
-  "version": "1.10.0",
+  "version": "1.11.0",
   "license": "Apache-2.0",
   "author": "Google Inc.",
   "engines": {