bump version to 2013.2
bump version to 2013.2

Change-Id: Ifbf5314e3a12fa7c55d81e363d4931d42e18e334

akash1808/glance,citrix-openstack-build/glance,saeki-masaki/glance,stevelle/glance,klmitch/glance,scripnichenko/glance,vuntz/glance,openstack/glance,ntt-sic/glance,paramite/glance,jumpstarter-io/glance,ozamiatin/glance,openstack/glance,dims/glance,dims/glance,SUSE-Cloud/glance,cloudbau/glance,ozamiatin/glance,jumpstarter-io/glance,kfwang/Glance-OVA-OVF,paramite/glance,klmitch/glance,ntt-sic/glance,stevelle/glance,redhat-openstack/glance,sigmavirus24/glance,sigmavirus24/glance,takeshineshiro/glance,rickerc/glance_audit,JioCloud/glance,vuntz/glance,cloudbau/glance,darren-wang/gl,tanglei528/glance,akash1808/glance,darren-wang/gl,takeshineshiro/glance,scripnichenko/glance,citrix-openstack-build/glance,rajalokan/glance,wkoathp/glance,redhat-openstack/glance,SUSE-Cloud/glance,saeki-masaki/glance,JioCloud/glance,wkoathp/glance,rickerc/glance_audit,tanglei528/glance,kfwang/Glance-OVA-OVF,openstack/glance,rajalokan/glance