[REEF-1400] Update update_website.py script to include pom.xml file
[REEF-1400] Update update_website.py script to include pom.xml file

JIRA:
  [REEF-1400](https://issues.apache.org/jira/browse/REEF-1400)

Pull request:
  This closes #1015

afchung/incubator-reef,shravanmn/reef,anupam128/reef,motus/reef,afchung/incubator-reef,shulmanb/reef,dougmsft/reef,shulmanb/reef,afchung/reef,anupam128/reef,shulmanb/reef,tcNickolas/reef,afchung/reef,markusweimer/reef,anupam128/reef,jwang98052/reef,dongjoon-hyun/incubator-reef,singlis/reef,afchung/reef,jwang98052/reef,markusweimer/incubator-reef,jsjason/incubator-reef,singlis/reef,jwang98052/incubator-reef,tcNickolas/reef,afchung/incubator-reef,apache/incubator-reef,afchung/reef,nachocano/incubator-reef,singlis/reef,dongjoon-hyun/reef,tcNickolas/incubator-reef,apache/reef,dongjoon-hyun/reef,markusweimer/incubator-reef,motus/reef,apache/incubator-reef,tcNickolas/incubator-reef,jsjason/incubator-reef,jwang98052/reef,tcNickolas/reef,dougmsft/reef,tcNickolas/reef,nachocano/incubator-reef,dougmsft/reef,anupam128/reef,tcNickolas/incubator-reef,dougmsft/reef,apache/reef,shravanmn/reef,jsjason/incubator-reef,jwang98052/incubator-reef,shravanmn/reef,dongjoon-hyun/incubator-reef,afchung/incubator-reef,nachocano/incubator-reef,dongjoon-hyun/incubator-reef,jwang98052/incubator-reef,tcNickolas/incubator-reef,afchung/reef,markusweimer/reef,dongjoon-hyun/incubator-reef,dongjoon-hyun/reef,afchung/reef,apache/incubator-reef,jwang98052/incubator-reef,anupam128/reef,dougmsft/reef,dongjoon-hyun/incubator-reef,jsjason/incubator-reef,markusweimer/incubator-reef,nachocano/incubator-reef,tcNickolas/reef,nachocano/incubator-reef,jwang98052/reef,shulmanb/reef,dongjoon-hyun/reef,motus/reef,jwang98052/incubator-reef,anupam128/reef,shravanmn/reef,apache/reef,apache/incubator-reef,afchung/reef,markusweimer/incubator-reef,markusweimer/incubator-reef,markusweimer/reef,apache/incubator-reef,markusweimer/incubator-reef,tcNickolas/incubator-reef,dougmsft/reef,apache/incubator-reef,tcNickolas/reef,shulmanb/reef,shravanmn/reef,singlis/reef,markusweimer/reef,apache/reef,dongjoon-hyun/reef,shulmanb/reef,markusweimer/reef,afchung/incubator-reef,dongjoon-hyun/incubator-reef,apache/reef,motus/reef,shravanmn/reef,jsjason/incubator-reef,jsjason/incubator-reef,jwang98052/reef,anupam128/reef,singlis/reef,tcNickolas/incubator-reef,afchung/incubator-reef,motus/reef,markusweimer/incubator-reef,motus/reef,singlis/reef,shulmanb/reef,shravanmn/reef,jwang98052/reef,jwang98052/reef,dongjoon-hyun/incubator-reef,singlis/reef,jsjason/incubator-reef,jwang98052/incubator-reef,dongjoon-hyun/reef,dougmsft/reef,nachocano/incubator-reef,dongjoon-hyun/reef,apache/reef,nachocano/incubator-reef,tcNickolas/reef,markusweimer/reef,markusweimer/reef,apache/incubator-reef,tcNickolas/incubator-reef,motus/reef,jwang98052/incubator-reef,apache/reef,afchung/incubator-reef