kerberos dependency added to setup.py
kerberos dependency added to setup.py

aerickson/jenkinsapi,mistermocha/jenkinsapi,jduan/jenkinsapi,imsardine/jenkinsapi,zaro0508/jenkinsapi,domenkozar/jenkinsapi,salimfadhley/jenkinsapi,JohnLZeller/jenkinsapi,JohnLZeller/jenkinsapi,mistermocha/jenkinsapi,imsardine/jenkinsapi,imsardine/jenkinsapi,aerickson/jenkinsapi,domenkozar/jenkinsapi,zaro0508/jenkinsapi,salimfadhley/jenkinsapi,JohnLZeller/jenkinsapi,zaro0508/jenkinsapi,jduan/jenkinsapi,mistermocha/jenkinsapi