SUSE-SU-2017:1783-1 Security update for postgresql94

This update for postgresql93 fixes the following issues: - bsc1029547: Fix tests with timezone 2017a - CVE-2017-7486: Restrict visibility of pgusermappings.umoptions, to protect passwords stored as user mapping options. bsc1037624 - CVE-2017-7485: Recognize PGREQUIRESSL variable again. bsc1038293...