adding in a new stream of postgres

Signed-off-by: langdon <langdon@fedoraproject.org>

variants-modular.xml

@@ -23,6 +23,7 @@
             <module>freeipa-master</module>
             <module>networking-base-f27</module>
             <module>postgresql-9.6</module>
+            <module>postgresql-9.5</module>
             <module>udisks2-2</module>
             
             <module>389-ds-1.2</module>