First version of .vimrc
Revert "First version of .vimrc"

This reverts commit db66d5ed1b33ff1691683afdf6832de71d26a5db.
Revert "* Ajout de la session KDE"

This reverts commit 5b987c26808bb3952710e3ab6b0e0008d29b56fc.
Ajout de diverses options pour vim