Fixes #9267 - overridden smart class parameters large names are truncated with tooltip

Fixes #11847 - find overridable global parameters by .fields selector

Fixes #11861 - Smart variables can be removed and deleted

Fixes #11859 - handle HTML in parameters safely when hiding values (CVE-2015-5282)

Fixes #11845: handle case of hidden textarea that is not an editor.

http://projects.theforeman.org/issues/11845

Fixes #11468 - separate global and class parameters on host/hostgroup form

Fixes #11761 - support hostgroup form push through AJAX

Fixes #11689: hide editor container when hidden value.

http://projects.theforeman.org/issues/11689

Fixes #11745 - set_diff/edit_mode only if editor exists

Fixes #11688: default text editor to ruby.

Instead of defaulting to text, default to ruby syntax highlighting.

http://projects.theforeman.org/issues/11688