First-draft release notes for 9.3.5.
First-draft release notes for 9.3.5.

As usual, the release notes for older branches will be made by cutting
these down, but put them up for community review first.

Note: a few of these items actually don't apply to 9.3, but only to older
branches.  I'll sort that out when copying the text into the older
release-X.Y.sgml files.

zeroae/postgres-xl,ashwinstar/gpdb,ashwinstar/gpdb,xinzweb/gpdb,Postgres-XL/Postgres-XL,jmcatamney/gpdb,zeroae/postgres-xl,jmcatamney/gpdb,ashwinstar/gpdb,adam8157/gpdb,greenplum-db/gpdb,xinzweb/gpdb,oberstet/postgres-xl,jmcatamney/gpdb,jmcatamney/gpdb,50wu/gpdb,Postgres-XL/Postgres-XL,50wu/gpdb,jmcatamney/gpdb,greenplum-db/gpdb,oberstet/postgres-xl,yazun/postgres-xl,ashwinstar/gpdb,zeroae/postgres-xl,greenplum-db/gpdb,greenplum-db/gpdb,techdragon/Postgres-XL,zeroae/postgres-xl,lisakowen/gpdb,xinzweb/gpdb,lisakowen/gpdb,greenplum-db/gpdb,ovr/postgres-xl,50wu/gpdb,ashwinstar/gpdb,xinzweb/gpdb,50wu/gpdb,lisakowen/gpdb,adam8157/gpdb,Postgres-XL/Postgres-XL,50wu/gpdb,greenplum-db/gpdb,pavanvd/postgres-xl,techdragon/Postgres-XL,ashwinstar/gpdb,adam8157/gpdb,techdragon/Postgres-XL,pavanvd/postgres-xl,xinzweb/gpdb,adam8157/gpdb,lisakowen/gpdb,Postgres-XL/Postgres-XL,adam8157/gpdb,50wu/gpdb,oberstet/postgres-xl,yazun/postgres-xl,ovr/postgres-xl,pavanvd/postgres-xl,yazun/postgres-xl,yazun/postgres-xl,adam8157/gpdb,lisakowen/gpdb,xinzweb/gpdb,xinzweb/gpdb,jmcatamney/gpdb,oberstet/postgres-xl,greenplum-db/gpdb,techdragon/Postgres-XL,jmcatamney/gpdb,techdragon/Postgres-XL,Postgres-XL/Postgres-XL,ovr/postgres-xl,greenplum-db/gpdb,ashwinstar/gpdb,oberstet/postgres-xl,pavanvd/postgres-xl,lisakowen/gpdb,xinzweb/gpdb,ovr/postgres-xl,pavanvd/postgres-xl,yazun/postgres-xl,jmcatamney/gpdb,ashwinstar/gpdb,lisakowen/gpdb,50wu/gpdb,lisakowen/gpdb,ovr/postgres-xl,zeroae/postgres-xl,adam8157/gpdb,50wu/gpdb,adam8157/gpdb