||ChatAction is the CHEF chat tool.
||ChatDelivery is a Delivery that causes a chat message to be appended to a table of chat messages
in the HTML element identified by the address and elementID.
||ChatObservingCourier is an ObservingCourier that watches chat events and delivers them with
extra information, specifically the reference to the message referenced by the event.
||ColorMapper is a wrapper for a Hashtable that maps user names (or any set of Strings) to colors.