piros/tor: Code added to Tor to support PIR-based onion service descriptor lookups @ 7ce8548c288883abbd853463cd8a0fd8172f04c4

Nick Mathewson 7ce8548c28 Merge branch 'maint-0.3.5' into release-0.3.5		7 lat temu
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.dummy	df76da0f3b Add a .dummy file in the changes directory to stop git from removing it	11 lat temu
bug28938	09472791d0 Add changes file for bug 28938	7 lat temu