director: Small improvements to director-test.sh Test with a bigger director ring. Include microseconds in log timestamps to make debugging easier. Changed the name of the info_log_path.

director: Fixes to director-test.

director-test.sh script fixed to use a working path for director-test binary.

director: Added support for moving user to another server with "doveadm director move".

director: Lots of fixes. It should be pretty stable now. --HG-- branch : HEAD

director-test.sh: Removed absolute path from director-test executable --HG-- branch : HEAD

director-test: Added a script that generates test config files and other necessary info. --HG-- branch : HEAD