Add python26 jobs to debtcollector
Add python26 jobs to debtcollector

Since the debtcollector library is used by
oslo libraries (which still support 2.6 for the
time being) so should this library (which it
already should support) until we can finally
drop 2.6 support from the using libraries.

Change-Id: Ie744544004fcc35a892788a231c1e7408106d903

Tesora/tesora-project-config,anbangr/osci-project-config,open-switch/infra_project-config,noorul/os-project-config,citrix-openstack/project-config,Tesora/tesora-project-config,anbangr/osci-project-config,coolsvap/project-config,noorul/os-project-config,citrix-openstack/project-config,openstack-infra/project-config,openstack-infra/project-config,dongwenjuan/project-config,dongwenjuan/project-config,coolsvap/project-config,open-switch/infra_project-config