make _123 and _LR work in WQL+discussion

Simple cases aren't bad with current tech, e.g., Settings defaults and help:

vs.:

{"_1": {"type": "Setting"},
 "_2": "*right",
 "_3": "*edit help"
} 

they do work. but left and _left are different beasts.

  --Ethan McCutchen.....Tue Feb 15 22:48:48 -0800 2011

  --John Abbe.....Wed Feb 16 03:27:14 -0800 2011

What does _left have to do with it?

  --John Abbe.....Wed Feb 16 03:28:27 -0800 2011

the underscores are for absolutizing with the context card, not the cards returned.

if your search is John+friends+birthdays, then _self is John+friends, _left is John. But if you use "left" in the query, it has nothing to with the context card and only describes the cards returned.

So you mean "1", not "_1" and "LR", not "_LR".