added install.upgrade task
added install.upgrade task

Signed-off-by: tamil <9e0c939d8bdea528e60fdb7c5b28595eb7c90423@inktank.com>

dmick/teuthology,zhouyuan/teuthology,michaelsevilla/teuthology,caibo2014/teuthology,robbat2/teuthology,michaelsevilla/teuthology,caibo2014/teuthology,zhouyuan/teuthology,ktdreyer/teuthology,yghannam/teuthology,dmick/teuthology,SUSE/teuthology,tchaikov/teuthology,dmick/teuthology,t-miyamae/teuthology,ivotron/teuthology,ktdreyer/teuthology,SUSE/teuthology,ceph/teuthology,yghannam/teuthology,t-miyamae/teuthology,dreamhost/teuthology,tchaikov/teuthology,ivotron/teuthology,robbat2/teuthology,SUSE/teuthology,dreamhost/teuthology,ceph/teuthology