pgloader - pgloader: Adding support for columns=* configuration

Log Message:
-----------
Adding support for columns=* configuration

Modified Files:
--------------
    pgloader/debian:
        changelog (r1.19 -> r1.20)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgloader/pgloader/debian/changelog.diff?r1=1.19&r2=1.20)
        control (r1.6 -> r1.7)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgloader/pgloader/debian/control.diff?r1=1.6&r2=1.7)
    pgloader/examples:
        pgloader.conf (r1.16 -> r1.17)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgloader/pgloader/examples/pgloader.conf.diff?r1=1.16&r2=1.17)
    pgloader/pgloader:
        db.py (r1.15 -> r1.16)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgloader/pgloader/pgloader/db.py.diff?r1=1.15&r2=1.16)
        pgloader.py (r1.39 -> r1.40)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgloader/pgloader/pgloader/pgloader.py.diff?r1=1.39&r2=1.40)

Added Files:
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    pgloader/examples/allcols:
        allcols.data (r1.1)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgloader/pgloader/examples/allcols/allcols.data?rev=1.1&content-type=text/x-cvsweb-markup)
        allcols.sql (r1.1)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgloader/pgloader/examples/allcols/allcols.sql?rev=1.1&content-type=text/x-cvsweb-markup)