vimrc: Comments about debugging vim itself

Signed-off-by: Carl Helmertz <chelmertz@op5.com>
xprofile: Disable touchpad when mouse is connected

This should of course ideally listen to the mouse being removed/added
and react to that. Let's just remember

    synclient TouchpadOff=0

for now.

Signed-off-by: Carl Helmertz <chelmertz@op5.com>