Avoid getting errors for ignored events (like keys held down).

  ignoring error: invalid number of arguments: 14
  HEMLOCK.X11::HUNK-IGNORE-EVENT ....
First draft of Visual mode.
Only (SETF *region*) if the macro body doesn't.
Provide message when going to Insert Mode, or when about to delete.
#\Space goes to the next character, right? ;P
Extend .gitignore.
As reference, the forms I'm using to run Hemlock in VIM mode.