make management socket to listen on temporal files, different for each run
reason: after a failed run, you have to manually remove /tmp/.eip.sock also some tests fail, sometimes, for this reason.
use tempfile.mkstemp (can we only get the name/location?) we can:
- make a temp folder (leap-xxxx)
- put random name for socket inside.
- on next run, check if some older folder exist, and delete it?
maybe only 1. and 2. for now.
(from redmine: created on 2012-08-30, closed on 2012-09-05)