Some fixes:
Issue #2010272 by andypost: Links to users in chat does not pass user_access() - fixed
Issue #2010272 by andypost: Links to users in chat does not pass user_access() - fixed links to user profile on alert messages too
#2023883 by SocialNicheGuru: Added info about privatemsg version.
Changed wrapper of messages to work correctly with Rules action with node.js module (https://drupal.org/project/rules_nodejs_action)