Use FAI::get_all_objects_for_given_base to get the list of FAI classes and limit the scope to the current FAI release.

Forward port revision 16073

Apply fix for #3750

- Move gathering of all FAI classes to an own function,
  because it should really be limited to the FAI classes
  that are part of the current release or inheritted releases.
- Use FAI::get_all_objects_for_given_base to get the list of
  FAI classes and limit the scope to the current FAI release.
  This way the list only has those FAI classes which we have
  in the current release or could inherit. This fixes a bug
  with displaying wrong symbols in some conditions.

(from redmine: issue id 1168, created on 2012-07-20, closed on 2013-03-29)

Changesets:
- Revision 8038edea by Benoit MORTIER on 2012-07-20T15:45:02.000Z:

Fixes: #1168 Use FAI::get_all_objects_for_given_base to get the list of FAI classes and limit the scope to the current FAI release.

Custom Fields:
- Bug in version: 1.0.4