Make transmission retries configureable.
Documentation (manpage) updated.
Unit test for retry counter.
Fix usage output and option string.
Try to get the man page installed as well.
New version number.
Renamed a function to avoid tag lookup clashes.
Basic implementation of running as hacluster:haclient instead of 0:0.
Man page updated.
Fix compiler warning/error 'unused result'.
Removed some debugging code again. Failed compilation via OSC.
The "retries" value has to be copied to tickets, too.

It was left at 0 ... which meant no retries, and didn't work that good.
Drop priviledges only after using them.

Neither scheduling nor memlock() wishes are successful when not root.
For future enhancements: add authentication data.

As discussed on the mailing list: not used now, but easier to add if
the packet format on the wire doesn't change.
Unit tests: Allow starting from an arbitrary file.
Unit tests: fixed wrong indentation.
Unit tests: remember whether the debuggee is running or not.
Store the previous ballot value on catchup.
Unit tests: Close and detach the per-test logfiles after running that test.
Unit tests: Put a textual description what is being tested into the logfile.