Add information on regression testing and Linux ports. Fix typos in TZ setting for regression testing and in gmake redirection.
Add information on regression testing and Linux ports.
Fix typos in TZ setting for regression testing and in gmake redirection.

greenplum-db/gpdb,Quikling/gpdb,Quikling/gpdb,cjcjameson/gpdb,atris/gpdb,rubikloud/gpdb,kmjungersen/PostgresXL,postmind-net/postgres-xl,lisakowen/gpdb,xinzweb/gpdb,Postgres-XL/Postgres-XL,edespino/gpdb,CraigHarris/gpdb,cjcjameson/gpdb,pavanvd/postgres-xl,xinzweb/gpdb,techdragon/Postgres-XL,lisakowen/gpdb,lintzc/gpdb,ashwinstar/gpdb,CraigHarris/gpdb,atris/gpdb,lisakowen/gpdb,ashwinstar/gpdb,oberstet/postgres-xl,lintzc/gpdb,tangp3/gpdb,zaksoup/gpdb,xuegang/gpdb,janebeckman/gpdb,janebeckman/gpdb,kaknikhil/gpdb,zeroae/postgres-xl,janebeckman/gpdb,pavanvd/postgres-xl,rubikloud/gpdb,tangp3/gpdb,Chibin/gpdb,atris/gpdb,foyzur/gpdb,lisakowen/gpdb,lpetrov-pivotal/gpdb,zeroae/postgres-xl,kaknikhil/gpdb,Chibin/gpdb,randomtask1155/gpdb,rvs/gpdb,CraigHarris/gpdb,ashwinstar/gpdb,yazun/postgres-xl,oberstet/postgres-xl,ahachete/gpdb,yuanzhao/gpdb,xuegang/gpdb,lintzc/gpdb,yuanzhao/gpdb,50wu/gpdb,techdragon/Postgres-XL,janebeckman/gpdb,pavanvd/postgres-xl,tpostgres-projects/tPostgres,janebeckman/gpdb,adam8157/gpdb,ahachete/gpdb,greenplum-db/gpdb,snaga/postgres-xl,randomtask1155/gpdb,foyzur/gpdb,chrishajas/gpdb,ovr/postgres-xl,0x0FFF/gpdb,edespino/gpdb,rvs/gpdb,zaksoup/gpdb,50wu/gpdb,ovr/postgres-xl,tpostgres-projects/tPostgres,0x0FFF/gpdb,tpostgres-projects/tPostgres,rvs/gpdb,oberstet/postgres-xl,Chibin/gpdb,royc1/gpdb,kmjungersen/PostgresXL,adam8157/gpdb,foyzur/gpdb,arcivanov/postgres-xl,xuegang/gpdb,CraigHarris/gpdb,jmcatamney/gpdb,royc1/gpdb,Quikling/gpdb,snaga/postgres-xl,xinzweb/gpdb,ovr/postgres-xl,adam8157/gpdb,chrishajas/gpdb,yazun/postgres-xl,kaknikhil/gpdb,atris/gpdb,royc1/gpdb,Quikling/gpdb,lintzc/gpdb,50wu/gpdb,greenplum-db/gpdb,kaknikhil/gpdb,royc1/gpdb,ashwinstar/gpdb,adam8157/gpdb,atris/gpdb,janebeckman/gpdb,lpetrov-pivotal/gpdb,kaknikhil/gpdb,edespino/gpdb,royc1/gpdb,kmjungersen/PostgresXL,lintzc/gpdb,snaga/postgres-xl,royc1/gpdb,rubikloud/gpdb,rvs/gpdb,CraigHarris/gpdb,edespino/gpdb,randomtask1155/gpdb,50wu/gpdb,ahachete/gpdb,zaksoup/gpdb,rubikloud/gpdb,ashwinstar/gpdb,rvs/gpdb,Chibin/gpdb,janebeckman/gpdb,cjcjameson/gpdb,edespino/gpdb,Chibin/gpdb,ahachete/gpdb,xinzweb/gpdb,kaknikhil/gpdb,kaknikhil/gpdb,postmind-net/postgres-xl,xinzweb/gpdb,yuanzhao/gpdb,kaknikhil/gpdb,50wu/gpdb,arcivanov/postgres-xl,zeroae/postgres-xl,jmcatamney/gpdb,rubikloud/gpdb,foyzur/gpdb,xuegang/gpdb,ahachete/gpdb,zaksoup/gpdb,Quikling/gpdb,0x0FFF/gpdb,jmcatamney/gpdb,yuanzhao/gpdb,zaksoup/gpdb,0x0FFF/gpdb,edespino/gpdb,tpostgres-projects/tPostgres,tangp3/gpdb,randomtask1155/gpdb,snaga/postgres-xl,techdragon/Postgres-XL,greenplum-db/gpdb,xuegang/gpdb,ashwinstar/gpdb,50wu/gpdb,cjcjameson/gpdb,ashwinstar/gpdb,yuanzhao/gpdb,atris/gpdb,randomtask1155/gpdb,oberstet/postgres-xl,jmcatamney/gpdb,xuegang/gpdb,Quikling/gpdb,yazun/postgres-xl,cjcjameson/gpdb,tangp3/gpdb,tangp3/gpdb,xuegang/gpdb,foyzur/gpdb,chrishajas/gpdb,lintzc/gpdb,lpetrov-pivotal/gpdb,yuanzhao/gpdb,lisakowen/gpdb,zaksoup/gpdb,kaknikhil/gpdb,rvs/gpdb,50wu/gpdb,ahachete/gpdb,Quikling/gpdb,lisakowen/gpdb,arcivanov/postgres-xl,chrishajas/gpdb,rvs/gpdb,rvs/gpdb,Chibin/gpdb,techdragon/Postgres-XL,0x0FFF/gpdb,xuegang/gpdb,edespino/gpdb,jmcatamney/gpdb,xinzweb/gpdb,yazun/postgres-xl,greenplum-db/gpdb,yazun/postgres-xl,lintzc/gpdb,xuegang/gpdb,Chibin/gpdb,atris/gpdb,yuanzhao/gpdb,ovr/postgres-xl,arcivanov/postgres-xl,Chibin/gpdb,foyzur/gpdb,foyzur/gpdb,postmind-net/postgres-xl,rubikloud/gpdb,edespino/gpdb,lisakowen/gpdb,Postgres-XL/Postgres-XL,lpetrov-pivotal/gpdb,adam8157/gpdb,lintzc/gpdb,royc1/gpdb,tangp3/gpdb,ahachete/gpdb,yuanzhao/gpdb,rubikloud/gpdb,kmjungersen/PostgresXL,50wu/gpdb,Postgres-XL/Postgres-XL,greenplum-db/gpdb,zeroae/postgres-xl,lpetrov-pivotal/gpdb,ahachete/gpdb,kaknikhil/gpdb,snaga/postgres-xl,0x0FFF/gpdb,janebeckman/gpdb,lpetrov-pivotal/gpdb,tangp3/gpdb,arcivanov/postgres-xl,tangp3/gpdb,lintzc/gpdb,Quikling/gpdb,foyzur/gpdb,greenplum-db/gpdb,adam8157/gpdb,yuanzhao/gpdb,oberstet/postgres-xl,atris/gpdb,CraigHarris/gpdb,cjcjameson/gpdb,xinzweb/gpdb,greenplum-db/gpdb,Postgres-XL/Postgres-XL,postmind-net/postgres-xl,chrishajas/gpdb,0x0FFF/gpdb,cjcjameson/gpdb,jmcatamney/gpdb,randomtask1155/gpdb,royc1/gpdb,chrishajas/gpdb,Chibin/gpdb,randomtask1155/gpdb,lpetrov-pivotal/gpdb,zaksoup/gpdb,CraigHarris/gpdb,cjcjameson/gpdb,janebeckman/gpdb,rvs/gpdb,techdragon/Postgres-XL,lisakowen/gpdb,Chibin/gpdb,lpetrov-pivotal/gpdb,chrishajas/gpdb,postmind-net/postgres-xl,rvs/gpdb,edespino/gpdb,0x0FFF/gpdb,adam8157/gpdb,Postgres-XL/Postgres-XL,cjcjameson/gpdb,zaksoup/gpdb,ovr/postgres-xl,zeroae/postgres-xl,xinzweb/gpdb,arcivanov/postgres-xl,ashwinstar/gpdb,chrishajas/gpdb,kmjungersen/PostgresXL,Quikling/gpdb,yuanzhao/gpdb,pavanvd/postgres-xl,cjcjameson/gpdb,janebeckman/gpdb,CraigHarris/gpdb,CraigHarris/gpdb,jmcatamney/gpdb,pavanvd/postgres-xl,edespino/gpdb,rubikloud/gpdb,Quikling/gpdb,tpostgres-projects/tPostgres,adam8157/gpdb,jmcatamney/gpdb,randomtask1155/gpdb