Add trove classifiers for PyPI
Add trove classifiers for PyPI

Add classifiers so we can eventually register the project
on PyPI to reserve the name, even though we won't release
packages there.

Change-Id: I9ef676ffd4a84cb149d7f5b6998c16c46e4181b8
Signed-off-by: Doug Hellmann <8c845c26a3868dadec615703cd974244eb2ac6d1@dreamhost.com>

promptworks/keystone,promptworks/keystone,derekchiang/keystone,dstanek/keystone,rickerc/keystone_audit,rajalokan/keystone,promptworks/keystone,mahak/keystone,blueboxgroup/keystone,rushiagr/keystone,MaheshIBM/keystone,roopali8/keystone,ajayaa/keystone,cbrucks/Federated_Keystone,UTSA-ICS/keystone-kerberos,jumpstarter-io/keystone,idjaw/keystone,mahak/keystone,ging/keystone,cloudbau/keystone,cernops/keystone,rickerc/keystone_audit,takeshineshiro/keystone,ilay09/keystone,ajayaa/keystone,maestro-hybrid-cloud/keystone,ging/keystone,roopali8/keystone,townbull/keystone-dtrust,idjaw/keystone,jumpstarter-io/keystone,ilay09/keystone,citrix-openstack-build/keystone,rajalokan/keystone,rushiagr/keystone,himanshu-setia/keystone,jamielennox/keystone,himanshu-setia/keystone,ntt-sic/keystone,rodrigods/keystone,citrix-openstack-build/keystone,rajalokan/keystone,openstack/keystone,rodrigods/keystone,townbull/keystone-dtrust,vivekdhayaal/keystone,derekchiang/keystone,reeshupatel/demo,dsiddharth/access-keys,reeshupatel/demo,cloudbau/keystone,townbull/keystone-dtrust,derekchiang/keystone,rickerc/keystone_audit,MaheshIBM/keystone,dstanek/keystone,jamielennox/keystone,dstanek/keystone,ilay09/keystone,kwss/keystone,dsiddharth/access-keys,kwss/keystone,kwss/keystone,reeshupatel/demo,dims/keystone,vivekdhayaal/keystone,ntt-sic/keystone,UTSA-ICS/keystone-kerberos,cloudbau/keystone,klmitch/keystone,dsiddharth/access-keys,nuxeh/keystone,jonnary/keystone,mahak/keystone,vivekdhayaal/keystone,takeshineshiro/keystone,openstack/keystone,cbrucks/Federated_Keystone,klmitch/keystone,rushiagr/keystone,openstack/keystone,jonnary/keystone,blueboxgroup/keystone,cbrucks/Federated_Keystone,nuxeh/keystone,ntt-sic/keystone,cernops/keystone,JioCloud/keystone,maestro-hybrid-cloud/keystone,JioCloud/keystone,nuxeh/keystone,jumpstarter-io/keystone,citrix-openstack-build/keystone,dims/keystone