Merge branch 'maint-0.2.9' into maint-0.3.1

changes/bug24952

changes/bug25223

changes/ticket24902

changes/ticket25122

changes/ticket25202

doc/tor.1.txt

src/common/address.c

src/common/address.h

src/common/address_set.c

src/common/address_set.h

src/common/include.am

src/common/log.c

src/common/torlog.h

src/or/channel.c

src/or/channel.h

src/or/channeltls.c

src/or/command.c

src/or/config.c

src/or/connection.c

src/or/dos.c