snapshot - src: ENH: First effort to remove COMMUNICATION_KEY and

Log Message:
-----------
ENH: First effort to remove COMMUNICATION_KEY and BASE_SCHEMA (use _snapshot_catalog)
ENH: First efford to support multiple tables with refresh fast
ENH: Usage of new EXPLAIN (only 9.0+) to locate multiple tables

Modified Files:
--------------
    root:
        Makefile.sh (r1.7 -> r1.8)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/snapshot/root/Makefile.sh?r1=1.7&r2=1.8)
    drivers/pg:
        snapshot.template.sql (r1.4 -> r1.5)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/snapshot/drivers/pg/snapshot.template.sql?r1=1.4&r2=1.5)
    src/pl:
        call_driver_function.pl (r1.4 -> r1.5)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/snapshot/src/pl/call_driver_function.pl?r1=1.4&r2=1.5)
        createLocalSnapshot.pl (r1.7 -> r1.8)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/snapshot/src/pl/createLocalSnapshot.pl?r1=1.7&r2=1.8)
        createRemoteSnapshot.pl (r1.10 -> r1.11)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/snapshot/src/pl/createRemoteSnapshot.pl?r1=1.10&r2=1.11)
        createSnapshotLogEntry.pl (r1.2 -> r1.3)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/snapshot/src/pl/createSnapshotLogEntry.pl?r1=1.2&r2=1.3)
        createSnapshotLogEntryColumns.pl (r1.3 -> r1.4)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/snapshot/src/pl/createSnapshotLogEntryColumns.pl?r1=1.3&r2=1.4)
        dblinkExists.pl (r1.2 -> r1.3)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/snapshot/src/pl/dblinkExists.pl?r1=1.2&r2=1.3)
        finalizeRefresh.pl (r1.2 -> r1.3)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/snapshot/src/pl/finalizeRefresh.pl?r1=1.2&r2=1.3)
        getDblinkById.pl (r1.2 -> r1.3)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/snapshot/src/pl/getDblinkById.pl?r1=1.2&r2=1.3)
        getDblinkId.pl (r1.1.1.1 -> r1.2)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/snapshot/src/pl/getDblinkId.pl?r1=1.1.1.1&r2=1.2)
        getSnapshot.pl (r1.1.1.1 -> r1.2)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/snapshot/src/pl/getSnapshot.pl?r1=1.1.1.1&r2=1.2)
        getSnapshotLog.pl (r1.3 -> r1.4)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/snapshot/src/pl/getSnapshotLog.pl?r1=1.3&r2=1.4)
        performFastRefresh.pl (r1.9 -> r1.10)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/snapshot/src/pl/performFastRefresh.pl?r1=1.9&r2=1.10)
        prepareForRefresh.pl (r1.3 -> r1.4)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/snapshot/src/pl/prepareForRefresh.pl?r1=1.3&r2=1.4)
        refreshSnapshot.pl (r1.4 -> r1.5)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/snapshot/src/pl/refreshSnapshot.pl?r1=1.4&r2=1.5)
        registerRemoteSnapshot.pl (r1.1 -> r1.2)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/snapshot/src/pl/registerRemoteSnapshot.pl?r1=1.1&r2=1.2)
        retrieveMasterForSnapshot.pl (r1.5 -> r1.6)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/snapshot/src/pl/retrieveMasterForSnapshot.pl?r1=1.5&r2=1.6)
        setTriggerStatus.pl (r1.6 -> r1.7)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/snapshot/src/pl/setTriggerStatus.pl?r1=1.6&r2=1.7)
        snapshotExists.pl (r1.2 -> r1.3)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/snapshot/src/pl/snapshotExists.pl?r1=1.2&r2=1.3)
    src/sql:
        pgsnapshots_create_snapshot.sql (r1.13 -> r1.14)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/snapshot/src/sql/pgsnapshots_create_snapshot.sql?r1=1.13&r2=1.14)
        pgsnapshots_dblink.sql (r1.7 -> r1.8)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/snapshot/src/sql/pgsnapshots_dblink.sql?r1=1.7&r2=1.8)
        pgsnapshots_drop_snapshot.sql (r1.10 -> r1.11)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/snapshot/src/sql/pgsnapshots_drop_snapshot.sql?r1=1.10&r2=1.11)
        pgsnapshots_refresh_snapshot.sql (r1.14 -> r1.15)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/snapshot/src/sql/pgsnapshots_refresh_snapshot.sql?r1=1.14&r2=1.15)
        pgsnapshots_snapshotlog.sql (r1.7 -> r1.8)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/snapshot/src/sql/pgsnapshots_snapshotlog.sql?r1=1.7&r2=1.8)
        pgsnapshots_tables.sql (r1.7 -> r1.8)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/snapshot/src/sql/pgsnapshots_tables.sql?r1=1.7&r2=1.8)