Uniformization of Coq tasks

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16149 85f007b7-540e-0410-9357-904b9bb8a0f7
Monadification of coqtop queries in CoqIDE

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16150 85f007b7-540e-0410-9357-904b9bb8a0f7