Fixes #7750 - hidden required fields do not prevent submit

When a field is explicitly required an HTML5 tag required was added
which caused issues during form submit.

fixes #3902 - [Openstack] allow selection of internal networks

This patch allows the user to select the internal network when deploying
a new instance in openstack.

In Grizlly, this was done automaticilly, with a nasty side effect, that
all internal networks would get assigned (didnt see that as i had only...

fixes #6856 - API v2 - more efficient import puppetclasses for single environment

Fixes #6549 - Add :tests_to_skip to plugin registration block

refs #2127 - add password_hash to API

Fixes #7572 - remove rundeck from core

Foreman rundeck is now a plugin available in https://github.com/theforeman/foreman_host_rundeck

fixes #7560 - add :required => true on host fields that have conditional validation if host.managed?

fixes #4386 - gem friendly_id to simplify find by id, name, label, etc

Fixes #7393 - searching users by role_id not supported

Fixes #7591 - changed Sign out to Log out to fix inconsistent terminology around Login vs Sign Out