Merge pull request #2 from feverLu/master

Final version
Adding README
Removing unused java files in Project2. Still need to handle outer linkgit status

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Solving the outer link problem, tested, ready to be submitted
Merge branch 'master' of https://github.com/forevermzm/cs5700
Initial commit for Project3
Finished Experiment1 of Project3, need to double check though.
Fixing small bug
Finished first 2 experiments of Project3
Change Project/README
experiment3