Merge branch 'fix_trunk_provisioning' into 'develop'

Rename automation user and incorporate Juniper changes

See merge request !67

geant/gap_ansible/playbooks/iptrunks.yaml

 - name: Manage iptrunks playbook
   hosts: all
-  remote_user: "{{ automation_user }}"
+  remote_user: "{{ gap_ansible_user }}"
   gather_facts: false
   roles:
     - Juniper.junos