Allowing  special users to be tracker admin

Change-Id: I74fe9be888f9ede1a67f8684feaae06ddede1f03
Allowing tracker admin to get through REST

Change-Id: I9295a2a31bd89af597c67d395cbdfd0dc22fc5fe
Merge remote-tracking branch 'gerrit/5998_delegate_project_validation' into HEAD

* gerrit/5998_delegate_project_validation:
  Allowing tracker admin to get through REST
  Allowing  special users to be tracker admin

Change-Id: I65420c96aed3d253d235c809d0176b4ca79091d5
This is Tuleap 6.11.99.26

Change-Id: I3e914e6e10ab6649578cd8f7afa77f668d76065e