Use "socket:/path/to/socket" syntax everywhere for AF_UNIX ports
With legacy/trac#11485 (moved), Andrea did a cool syntax for AF_UNIX hidden-service address targets.
Why didn't all the other FooPort options think of that?
We shouldn't have a separate option for Unix vs IP address as in:
SocksPort 127.0.0.1:9050 SocksSocket /home/nickm/.tor/connect-to-this
Instead why not just have it be:
SocksPort 127.0.0.1:9050 SocksPort socket:/home/nickm/.tor/connect-to-this