Merge pull request #3 from dfortney99/Joey

Joey
removed unnecessary files
Removed more unnecessary files
Prevent addition of .class files
Removed the backslash from tmp filepaths (it didn't work for me)
Added remove rating function
Added k nearest movies recommendation

The movies selected are determined by finding the 3 movies (minimum 3.5
rating) most distant to a random subset of 10 movies, selected from
movies that the user has rated. Then, for each movie, we select the
three nearest movies and recommend those to the user.
Added evaluation function, and put the old main function into its own method.