#78 xdist not-working fix: path() objects wasn't serializable so now they are casted into the plain string
xdist rather won't work on one machine as pytest-dbfixtures uses constant port numbers for all services and that's not possible to run multiple services at one machine on the same port. Though, distrubuted tests should still work
Merge pull request #79 from pwilczynskiclearcode/bugfix/78

#78 xdist not-working fix: path() objects wasn't serializable so now the...