Release version 2.1

This is a minor release containing:
* Show error when Token usage provokes non-ok error codes
** This should help in identifying when the token expired
* Show Token policies
** This should make it easier for debugging and figuring out
   which secret stores can be accessed

Signed-off-by: Chris Blum <zeichenanonym@web.de>

manifest.json

@@ -2,7 +2,7 @@
   "manifest_version": 2,
   "name": "VaultPass",
   "description": "A Chrome extension to leverage Hashicorp Vault as Credential Storage for teams",
-  "version": "2.0",
+  "version": "2.1",
   "browser_action": {
     "default_icon": "icons/logo128.png",
     "default_popup": "popup.html",