Add release note that "Postgres" is now documented as an acceptable alias.
Add release note that "Postgres" is now documented as an acceptable
alias.

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