sub: Add endoscope to end scopes

Add awesome alternative to autoclose plugins that isn't totally
automatic.
sub: update vader

Found a bug and was checking if it was already fixed. Unfortunately no.
sub: Improve MapHelp in scriptease

Now handles ctrl maps.
Unmap CR in gitv

Now that I have easyalign mapped to CR, I've been accidentally hitting
CR in visual mode and invoking it. Unmap it to prevent my mistakes.
Esc without leaving homerow: C-l

Also, you can hammer C-l and eventually it clears the screen, so the
normal mode behavior is kind there.

i_CTRL-l is only for insertmode, so it's of no use to me.
sub: add license to asynccommand