Update release notes to match CVS HEAD.
Update release notes to match CVS HEAD.

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