Chatbox

As far as I'm concerned this is complete now, all further requested changes are beyond my area of expertise as I'm not a web developer. If there is an issue in the Lua then tell me and I'll see about fixing it, but beyond bug fixes I'm unlikely to touch this feature any further.


![chat](https://f.cloud.github.com/assets/2039936/1041988/3e1d08d0-0fe1-11e3-8d09-b1d6fd4b85aa.png)