[Pgbuildfarm-members] log upload feature

For those who like living dangerously, you might like to try using the
client code in CVS tip, which now does a complete log upload, not just
the failure logs, in line with Tom Lane's request.

Log Message:
-----------

- upload a zipped tar of all the logs, regardless of success status
- fix multiroot bug with logdir name in web txn

Modified Files:
--------------
client-code:
build-farm.conf (r1.13 -> r1.14)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbuildfarm/client-code/build-farm.conf.diff?r1=1.13&r2=1.14 <http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbuildfarm/client-code/build-farm.conf.diff?r1=1.13&r2=1.14>)
run_build.pl (r1.36 -> r1.37)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbuildfarm/client-code/run_build.pl.diff?r1=1.36&r2=1.37 <http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbuildfarm/client-code/run_build.pl.diff?r1=1.36&r2=1.37>)
run_web_txn.pl (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbuildfarm/client-code/run_web_txn.pl.diff?r1=1.2&r2=1.3 <http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbuildfarm/client-code/run_web_txn.pl.diff?r1=1.2&r2=1.3>)

cheers

andrew