Make archiver process report its progress in PS display.  Per proposal by Simon Riggs, though not exactly his patch.
Make archiver process report its progress in PS display.  Per
proposal by Simon Riggs, though not exactly his patch.

xinzweb/gpdb,postmind-net/postgres-xl,0x0FFF/gpdb,CraigHarris/gpdb,Quikling/gpdb,yazun/postgres-xl,yazun/postgres-xl,jmcatamney/gpdb,0x0FFF/gpdb,cjcjameson/gpdb,ashwinstar/gpdb,janebeckman/gpdb,50wu/gpdb,kmjungersen/PostgresXL,xuegang/gpdb,chrishajas/gpdb,edespino/gpdb,Chibin/gpdb,ashwinstar/gpdb,cjcjameson/gpdb,zaksoup/gpdb,ashwinstar/gpdb,lisakowen/gpdb,lintzc/gpdb,zaksoup/gpdb,yuanzhao/gpdb,janebeckman/gpdb,pavanvd/postgres-xl,greenplum-db/gpdb,lisakowen/gpdb,adam8157/gpdb,0x0FFF/gpdb,chrishajas/gpdb,50wu/gpdb,xinzweb/gpdb,lintzc/gpdb,chrishajas/gpdb,yazun/postgres-xl,rvs/gpdb,zaksoup/gpdb,xinzweb/gpdb,0x0FFF/gpdb,jmcatamney/gpdb,edespino/gpdb,zeroae/postgres-xl,snaga/postgres-xl,yazun/postgres-xl,Chibin/gpdb,royc1/gpdb,zeroae/postgres-xl,50wu/gpdb,yuanzhao/gpdb,zaksoup/gpdb,Quikling/gpdb,chrishajas/gpdb,rvs/gpdb,techdragon/Postgres-XL,tpostgres-projects/tPostgres,lintzc/gpdb,ashwinstar/gpdb,ovr/postgres-xl,Quikling/gpdb,snaga/postgres-xl,pavanvd/postgres-xl,edespino/gpdb,techdragon/Postgres-XL,ovr/postgres-xl,yazun/postgres-xl,Postgres-XL/Postgres-XL,kaknikhil/gpdb,chrishajas/gpdb,arcivanov/postgres-xl,adam8157/gpdb,ovr/postgres-xl,postmind-net/postgres-xl,yuanzhao/gpdb,pavanvd/postgres-xl,rvs/gpdb,CraigHarris/gpdb,xuegang/gpdb,jmcatamney/gpdb,oberstet/postgres-xl,yuanzhao/gpdb,ahachete/gpdb,royc1/gpdb,lisakowen/gpdb,kaknikhil/gpdb,ashwinstar/gpdb,greenplum-db/gpdb,yuanzhao/gpdb,xuegang/gpdb,xuegang/gpdb,Chibin/gpdb,Postgres-XL/Postgres-XL,edespino/gpdb,0x0FFF/gpdb,arcivanov/postgres-xl,jmcatamney/gpdb,pavanvd/postgres-xl,yuanzhao/gpdb,xinzweb/gpdb,Quikling/gpdb,zaksoup/gpdb,tpostgres-projects/tPostgres,yuanzhao/gpdb,arcivanov/postgres-xl,adam8157/gpdb,50wu/gpdb,CraigHarris/gpdb,0x0FFF/gpdb,ahachete/gpdb,rvs/gpdb,greenplum-db/gpdb,royc1/gpdb,50wu/gpdb,postmind-net/postgres-xl,lisakowen/gpdb,janebeckman/gpdb,edespino/gpdb,Chibin/gpdb,kaknikhil/gpdb,kmjungersen/PostgresXL,zaksoup/gpdb,ahachete/gpdb,Quikling/gpdb,rvs/gpdb,jmcatamney/gpdb,xuegang/gpdb,Chibin/gpdb,rvs/gpdb,Quikling/gpdb,greenplum-db/gpdb,50wu/gpdb,Postgres-XL/Postgres-XL,kaknikhil/gpdb,Chibin/gpdb,techdragon/Postgres-XL,Quikling/gpdb,0x0FFF/gpdb,rvs/gpdb,Quikling/gpdb,royc1/gpdb,janebeckman/gpdb,lintzc/gpdb,cjcjameson/gpdb,cjcjameson/gpdb,janebeckman/gpdb,oberstet/postgres-xl,cjcjameson/gpdb,kaknikhil/gpdb,CraigHarris/gpdb,postmind-net/postgres-xl,techdragon/Postgres-XL,ashwinstar/gpdb,oberstet/postgres-xl,adam8157/gpdb,ovr/postgres-xl,janebeckman/gpdb,arcivanov/postgres-xl,kmjungersen/PostgresXL,lintzc/gpdb,zeroae/postgres-xl,lintzc/gpdb,xuegang/gpdb,edespino/gpdb,royc1/gpdb,chrishajas/gpdb,janebeckman/gpdb,Quikling/gpdb,zaksoup/gpdb,adam8157/gpdb,ahachete/gpdb,kaknikhil/gpdb,xinzweb/gpdb,snaga/postgres-xl,CraigHarris/gpdb,cjcjameson/gpdb,kaknikhil/gpdb,tpostgres-projects/tPostgres,snaga/postgres-xl,jmcatamney/gpdb,greenplum-db/gpdb,edespino/gpdb,pavanvd/postgres-xl,ashwinstar/gpdb,greenplum-db/gpdb,xinzweb/gpdb,xuegang/gpdb,oberstet/postgres-xl,arcivanov/postgres-xl,CraigHarris/gpdb,adam8157/gpdb,lintzc/gpdb,chrishajas/gpdb,kmjungersen/PostgresXL,rvs/gpdb,lintzc/gpdb,yuanzhao/gpdb,cjcjameson/gpdb,edespino/gpdb,lisakowen/gpdb,Postgres-XL/Postgres-XL,xinzweb/gpdb,kaknikhil/gpdb,royc1/gpdb,oberstet/postgres-xl,cjcjameson/gpdb,50wu/gpdb,techdragon/Postgres-XL,kmjungersen/PostgresXL,adam8157/gpdb,Quikling/gpdb,xinzweb/gpdb,janebeckman/gpdb,janebeckman/gpdb,ahachete/gpdb,CraigHarris/gpdb,jmcatamney/gpdb,arcivanov/postgres-xl,yuanzhao/gpdb,lintzc/gpdb,royc1/gpdb,kaknikhil/gpdb,edespino/gpdb,royc1/gpdb,50wu/gpdb,ovr/postgres-xl,kaknikhil/gpdb,cjcjameson/gpdb,0x0FFF/gpdb,zeroae/postgres-xl,lisakowen/gpdb,lisakowen/gpdb,xuegang/gpdb,Chibin/gpdb,zeroae/postgres-xl,cjcjameson/gpdb,ahachete/gpdb,jmcatamney/gpdb,lisakowen/gpdb,CraigHarris/gpdb,snaga/postgres-xl,rvs/gpdb,greenplum-db/gpdb,zaksoup/gpdb,ahachete/gpdb,ahachete/gpdb,Chibin/gpdb,Chibin/gpdb,adam8157/gpdb,Postgres-XL/Postgres-XL,tpostgres-projects/tPostgres,rvs/gpdb,greenplum-db/gpdb,edespino/gpdb,janebeckman/gpdb,postmind-net/postgres-xl,xuegang/gpdb,CraigHarris/gpdb,ashwinstar/gpdb,chrishajas/gpdb,yuanzhao/gpdb,tpostgres-projects/tPostgres,Chibin/gpdb