Ametys CMS patch 2 to allow HSQLDB database

--- DataSourceExtensionPoint.java	2013-03-14 21:44:46.000000000 +0400
+++ /root/DataSourceExtensionPoint.java	2013-07-05 00:19:17.000000000 +0400
@@ -110,6 +110,10 @@
         {
             return "SELECT 1 FROM SYS.SYSTABLES";
         }
+		else if ("org.hsqldb.jdbcDriver".equals(driver) || "org.hsqldb.jdbc.JDBCDriver".equals(driver))
+		{
+		    return "SELECT 1 FROM INFORMATION_SCHEMA.SYSTEM_USERS";
+		}
         else
         {
             return "SELECT 1";