[VOTE] accept the SLING-3667 Sling Query contribution

[Bertrand Delacretaz]

Hi,

See SLING-3667 for details - please vote to accept this contribution

SHA1(sling-query.zip)= 4a0488f00ac81f6ce29eb87e15255418b39bd5a4

This majority vote is open for at least 72 hours. I'm taking care of
the IP clearance process in parallel.

-Bertrand