piros/tor: Code added to Tor to support PIR-based onion service descriptor lookups @ 3323615dd2bffa54970624bb6eb2465f4064d812

Nick Mathewson 382c27d8a9 Merge branch 'ticket2325_squashed'		%!s(int64=10) %!d(string=hai) anos
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.dummy	df76da0f3b Add a .dummy file in the changes directory to stop git from removing it	%!s(int64=10) %!d(string=hai) anos
bug16162	6632a731fd Use a more recommended syntax for the systemd unit file	%!s(int64=10) %!d(string=hai) anos
bug16631	6e1eaa936a changes file for bug16631	%!s(int64=10) %!d(string=hai) anos
ticket2325	7521c3ee91 Document the torrc format as thoroughly as possible	%!s(int64=10) %!d(string=hai) anos