Add a few new time zones, and list every time zone mentioned in my  Linux box's time zone database. Do not allow 'current' as a date/time input value.
Add a few new time zones, and list every time zone mentioned in my
 Linux box's time zone database.
Do not allow 'current' as a date/time input value.

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