added random number generator; set userGuess variable; created if function to give feedback if guess was empty or append guess to guess
changed feedback for empty to include number outside of range; added 'Ice cold' feedback for guesses 50 higher or lower than randNum
added 'you win' feedback; changed varaible names allowing for comparing new guess with previous guess
added jquery file to work offline; started on new guess/last guess comparison
multiple changes - cleaning up

added comments; removed duplicated code using function; re-ordered
functions; added error check for NaN using %; added guess to feedback
comment.