Merge remote-tracking branch 'origin/maint-0.2.3'

changes/bug7352

src/common/aes.c

src/common/compat.c

src/common/crypto.c

src/common/crypto.h

src/common/mempool.c

src/common/tortls.c

src/common/util.c

src/or/buffers.c

src/or/circuitlist.c

src/or/connection.c

src/or/connection_edge.c

src/or/connection_or.c

src/or/networkstatus.c

src/or/onion.c

src/or/rendclient.c

src/or/rendservice.c

src/or/routerparse.c

src/tools/tor-gencert.c