piros/tor: Code added to Tor to support PIR-based onion service descriptor lookups @ 9b0a17a74f5d8cd7c5d8a07dd275e7d96bd4fd35

Nick Mathewson 9b0a17a74f Merge branch 'maint-0.3.4'		7 lat temu
..
.dummy	df76da0f3b Add a .dummy file in the changes directory to stop git from removing it	10 lat temu
bug27316	e24195c7c1 protover: reject invalid protocol names	7 lat temu
ticket27797	e3713f17fb node: Make node_supports_v3_rendezvous_point() also check for the key	7 lat temu