Check 'out' for repl-port if it isn't in 'target'.

When you set `:target-path` to something other than target then you have to connect manually every time.

Checking only for `out` doesn't seem right, probably this would make more sense as a setting?

The other idea that I had would be checking all directories under `b:leiningen_root` whether they have a `repl-port` in them.