Make gate-nova-python34 voting and add py34 gate
Make gate-nova-python34 voting and add py34 gate

Use the python3-jobs template to add gate-nova-python34 gate job.

Blueprint nova-python3
Change-Id: I4dcad3a1c0644a8bcf1b6ebc4c5fbf0effb23fb8

Tesora/tesora-project-config,noorul/os-project-config,openstack-infra/project-config,coolsvap/project-config,coolsvap/project-config,dongwenjuan/project-config,anbangr/osci-project-config,openstack-infra/project-config,dongwenjuan/project-config,noorul/os-project-config,Tesora/tesora-project-config,anbangr/osci-project-config