Refactor Area.contains
Implemented basic chat feature - supports /say for zone local messages and /global for server wide messages. Remembers last used channel and defaults to 'say'.
Cache entity name when pushing a new chat message so we are able to display the name if the entity doesn't exist anymore
Add command aliases for /global (/g) and /say (/s)
Fix enter key opening chat; Automatically open chat when command prefix is pressed