DAWG disjunction objection

When I was a DAWG working group member, I objected to disjunction:
  http://www.w3.org/2001/sw/DataAccess/issues#disjunction
on the grounds of implementation cost.

At this time over a year later, there are people who have implemented
it, so I'd withdraw my personal objection to it (I am not speaking for
my current or former employers).

However, I've still not found the time in the last year to implement it
myself in Rasqal, or can see that changing anytime soon.  Other parts of
SPARQL are higher priority to me.

Dave