Re-enable PDO PostgreSQL tests

Author: mbabker

phpunit.travis.xml

@@ -4,7 +4,7 @@
 	<php>
 		<const name="JTEST_DATABASE_MYSQL_DSN" value="host=localhost;dbname=joomla_ut;user=root;pass=" />
 		<const name="JTEST_DATABASE_MYSQLI_DSN" value="host=localhost;dbname=joomla_ut;user=root;pass=" />
-		<!--<const name="JTEST_DATABASE_PGSQL_DSN" value="host=localhost;port=5432;dbname=joomla_ut;user=postgres;pass=" />-->
+		<const name="JTEST_DATABASE_PGSQL_DSN" value="host=localhost;port=5432;dbname=joomla_ut;user=postgres;pass=" />
 		<const name="JTEST_DATABASE_POSTGRESQL_DSN" value="host=localhost;port=5432;dbname=joomla_ut;user=postgres;pass=" />
 		<!--<const name="JTEST_DATABASE_ORACLE_DSN" value="host=localhost;port=1521;dbname=joomla_ut;user=utuser;pass=ut1234" />
 		<const name="JTEST_DATABASE_SQLSRV_DSN" value="host=localhost;dbname=joomla_ut;user=utuser;pass=ut1234" />-->