replaced rmi UID impl with java util UUID

git-svn-id: http://chatter-bot-api.googlecode.com/svn/trunk@44 d2f23b1c-165f-2d7b-0bdd-b7ec307f7027
fix issue #12 : list index out of range (and potential null reference) in Pandorabots

git-svn-id: http://chatter-bot-api.googlecode.com/svn/trunk@50 d2f23b1c-165f-2d7b-0bdd-b7ec307f7027
Merge remote-tracking branch 'remotes/trunk'