More semantical-friendly function.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16517 85f007b7-540e-0410-9357-904b9bb8a0f7
Replacing compatibility layer for Fmap in Typeclasses. Code was
actually almost fold-order irrelevant (only changes printing order).

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16518 85f007b7-540e-0410-9357-904b9bb8a0f7
Removing Fmap from libraries, it is not used anymore.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16519 85f007b7-540e-0410-9357-904b9bb8a0f7
Removing useless uses of Gmap.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16520 85f007b7-540e-0410-9357-904b9bb8a0f7
Removing Gmap from Classops. Fold order only mattered for printing.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16521 85f007b7-540e-0410-9357-904b9bb8a0f7