Update comment description of geo routines and move comment to more relevant location.
Update comment description of geo routines and move comment to more
relevant location.

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