Added the verifyUser and getUser, they probably don't work yet but I want to make them for use in GoSin.java
started working on the log in option, I'll be using a verifyUser method from User.java
fixed some obvious compiling errors
added default constuctor
initialized currentUser to new User()
added new_username as a parameter to doesUsernameExist
changed added to currentlyLoggedOn and added parameter to doesUsernameExist (debugging)
fixed some errors (forgot to declare reader and spelled newTextFile wrong)
oops
declared reader so that reader.close() would have scope
commented out getUser method, initialized reader to default constructor
trying to fix the initialization error with reader by creating a blah.txt file
trying to fix the reader.close() compiling error
got rid of the BufferedReader constructor
fixed the log in option to alert the user to log out before logging in as a different user
added getUsername method
used getUsername instead of username (since it can't access username directly)