Use configured DomeMySql::dpmdb instead of string constant "dpm_db"

Fix two places in sql interface that use directly "dpm_db" instead of DomeMySql::dpmdb variable that is set to value read from configuration file.

dist/packaging/rpm/dmlite.spec

@@ -13,7 +13,7 @@
 
 
 Name:					dmlite
-Version:				1.11.1
+Version:				1.12.0
 Release:				1%{?dist}
 Summary:				Lcgdm grid data management and storage framework
 Group:					Applications/Internet