Reorder 8.2 release note items more logically.
Reorder 8.2 release note items more logically.

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