piros/tor: Code added to Tor to support PIR-based onion service descriptor lookups @ 80a6c8caa3910b18ce50ef870ef0af546c64faa2

Nick Mathewson 4e76b206b5 Merge remote-tracking branch 'arma/feature18624'		8 vuotta sitten
..
.dummy	df76da0f3b Add a .dummy file in the changes directory to stop git from removing it	9 vuotta sitten
bug17744_redux	c8eb39d67f Remove a couple of redundant lines from the makefile	8 vuotta sitten
bug18673	addd181721 Fix memory leak in TestingEnableCellStatsEvent	8 vuotta sitten
feature18624	c4208ef65f dir auths only give Guard if they're giving Stable	8 vuotta sitten
ticket18462	055a7a198a Rename tor_dup_addr to tor_addr_to_str_dup.	8 vuotta sitten