Merge pull request #3 from mgersten-caxy/master

Don't use username property when rendering the user's identity
Merge pull request #4 from mgersten-caxy/master

Don't use comments in yaml example in README
support symfony 2.3
Update README.md
Update README.md
Post message without requiring page reload (fixes #2)
Switch back to SetTimeout, but make the timeout clear on function call; This allows updateChat to be called independently wihtout setting up multiple timeouts
Switch to using the form id instead of the button id; This allows one to hit enter to submit a chat message with AJAX as well
Return a success message from post and update the chat based on that success message