Avoid py35 and docs ocata gate for heat-agents
Avoid py35 and docs ocata gate for heat-agents

This will add rules to run docs and python35 pike and forward for
heat-agents.

Change-Id: I2eba418888a60c092d36e2c79e5697aec12af0d4

openstack-infra/project-config,openstack-infra/project-config