chat processor

Added a basic chat processor which appends and processes chat from the
input box and moves it to the chat history box.

Current features:
appends text from chat input box
places text in history box
runs commands using a basic processor
has a line length limit
stops users using arrow keys to interfere with input box
enter key hooked to run the appending
text box always focused
basic commands--
thetime - displays current system time
echo - echo some text
help - help for the commands
cd - show current directory (useless)
letters - show letters in chat (useless)
ip - show client ip in chat (could be useful)

Added a tasks file which lists things that need to be  done and provides
ideas for possible expansions.

Updated the readme file a little

Added user and system messages to base style sheet