Partial applications in Goal.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@17074 85f007b7-540e-0410-9357-904b9bb8a0f7
Cleaning and documenting Egramcoq.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@17075 85f007b7-540e-0410-9357-904b9bb8a0f7