emacs: use C-up/down to browse enclosings, instead of up/down (fix #239)
emacs: use C-up/down to browse enclosings, instead of up/down (fix #239)

chriskonstad/merlin,rgrinberg/merlin,haselwarter/merlin,chriskonstad/merlin,rgrinberg/merlin,chambart/merlin,haselwarter/merlin,chambart/merlin,the-lambda-church/merlin,neojski/merlin,neojski/merlin,the-lambda-church/merlin,chambart/merlin,ocaml/merlin,fxfactorial/merlin,haselwarter/merlin,rgrinberg/merlin,fxfactorial/merlin,haselwarter/merlin,fxfactorial/merlin,ocaml/merlin,neojski/merlin,rgrinberg/merlin,the-lambda-church/merlin,ocaml/merlin,dra27/merlin,dra27/merlin,chambart/merlin,dra27/merlin,neojski/merlin,ocaml/merlin,dra27/merlin,fxfactorial/merlin