TEZ-807. Build broken due to NPE (Patch by Gunther Hagleitner, reviewed by Siddharth Seth)
TEZ-810. Add Gunther H. to the website. (Gunther Hagleitner via hitesh)
TEZ-812. exclude slf4j dependencies from hadoop. (Giridharan Kesavan via hitesh)
TEZ-799. Generate data to be used for recovery. (hitesh)