piros/tor: Code added to Tor to support PIR-based onion service descriptor lookups @ f3da62dbdfb2057a7c8d5d46367e9d41bdd5b9ec

Nick Mathewson f3da62dbdf changes file for 19899		10 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
bug19899	f3da62dbdf changes file for 19899	10 lat temu
bug21035	aaeb50b2f3 changes file for 21035.	10 lat temu
fallbacks-201612	53ec087450 Avoid an error in the fallback script when a fallback doesn't have any uptime	10 lat temu