Emoticons, copy cats and some bug fixes.

I added an array of emoticons that the program will sometimes randomly
add to the end of its reply. I also added a new method that will make
the program copy whatever you write in order to annoy the user. (The
chance of it copying you greatly increases if it is already copying
you) The program now has a new type of error that it can generate. If
it generates a certain error on the letter a it will sometimes change
the rest of the reply to be upper case. (simulating hitting caps lock)
Finally I fixed some bugs that made it so the responses for you
repeating yourself and you copying it actually execute.