Notify when shared directories are mounted

[jpiron]

This will allow parent playbooks/roles to trigger specific actions on
mount state change (with the listen directive).

[micafer]

Hi @jpiron,
But the "nfs shared directories mounted" handler must be defined in some place or the role will fail.
This change will make this role to depend on some parent role to work.

[jpiron]

Sorry, I didn't pay attention to the min_ansible_version of the meta file. It will indeed fail with Ansible versions prior to 2.0. With Ansible 2+ it won't and with Ansible 2.2+ it allows other roles/playbooks to hook it up.
What do you want me to do ? Close this issue or update the min_ansible_version to Ansible 2.0 ?