[Python-3000] Line continuation using ellipsis

[Paul Svensson]

Talin wrote:
> I've never liked using the backslash operator for line continuation

Me neither, but the suggested replacements don't appeal to me either.
Is there any reason we can't just remove them ?
Is backslash continuation still needed anywhere,
or does the grammar now allow for sufficient parenteses
anywhere a line might be 'too long' ?

 	/Paul