Full name:  __Steven Hwang
SEAS login: __stevenhw

Which features did you implement? 
  (list features, or write 'Entire assignment')
  
     Entire assignment

Did you complete any extra-credit tasks? If so, which ones?
  (list extra-credit tasks)
  
  for Crawler, if content has been seen before, it will output message "<url>: Content Seen" and not store it
     in the database under a different url.

Any special instructions for building and running your solution?
  (include detailed instructions, or write 'None')

   I included jetty-runner in the .zip file at the same level as the servlet.jar. 
     Calling "ant servlet" should run it"

Did you personally write _all_ the code you are submitting
(other than code from the course web page)?
  [x ] Yes
  [ ] No

Did you copy any code from the Internet, or from classmates?
  [ ] Yes
  [ x] No

Did you collaborate with anyone on this assignment?
  [ ] Yes
  [ x] No