pgloader - pgloader: Protect the database connection establishing into

Log Message:
-----------
Protect the database connection establishing into the parralel sections semaphore, allow field_sep to be configured to \t, and some fixes

Modified Files:
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pgloader:
pgloader.py (r1.32 -> r1.33)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgloader/pgloader/pgloader.py.diff?r1=1.32&r2=1.33)
pgloader/examples:
README (r1.4 -> r1.5)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgloader/pgloader/examples/README.diff?r1=1.4&r2=1.5)
pgloader/pgloader:
db.py (r1.21 -> r1.22)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgloader/pgloader/pgloader/db.py.diff?r1=1.21&r2=1.22)
pgloader.py (r1.43 -> r1.44)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgloader/pgloader/pgloader/pgloader.py.diff?r1=1.43&r2=1.44)
reader.py (r1.19 -> r1.20)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgloader/pgloader/pgloader/reader.py.diff?r1=1.19&r2=1.20)