Update hibernate files to initialize timestamp

Updated the hibernate hbm.xml files to correct the following issues:
1) Timestamps had generated="insert" but hibernate was not auto-populating
	the timestamp value thus the DB was generating an exception.  Modified
	the definition of this field to cause hibernate to provide the default
	value of CURRENT_TIMESTAMP.  This impacted most of the hbm.xml files.
2) While running junit tests, the following message appeared in the log
	underneath most of the hbm.xml files:
		Recognized obsolete hibernate namespace
			http://hibernate.sourceforge.net/. Use namespace
			http://www.hibernate.org/dtd/ instead. Refer to
			Hibernate 3.6 Migration Guide!
	Updated most of the hbm.xml files, changing the namespace per the
	guide.  Note: a couple of the files were already correctly configured.

Change-Id: Id96775b7bd7a42da0c00e208e33aed6fa96ab996
Issue-Id: SO-215
Signed-off-by: Jim Hahn <jrh3@att.com>
diff --git a/mso-catalog-db/src/main/resources/Service.hbm.xml b/mso-catalog-db/src/main/resources/Service.hbm.xml
index b48c55d..5bdb0f6 100644
--- a/mso-catalog-db/src/main/resources/Service.hbm.xml
+++ b/mso-catalog-db/src/main/resources/Service.hbm.xml
@@ -33,7 +33,9 @@
 		<property name="description" column="DESCRIPTION" type="string" length="1200"/>
 		<property name="toscaCsarArtifactUUID" 	column="TOSCA_CSAR_ARTIFACT_UUID" 	type="string" 		length="200" />
 
-		<property name="created" type="timestamp" generated="insert" update="false" insert="false" column="CREATION_TIMESTAMP" not-null="true"/>
+		<property name="created" type="timestamp" generated="insert" update="false" insert="false" not-null="true">
+          <column name="CREATION_TIMESTAMP" default="CURRENT_TIMESTAMP"/>
+        </property>
 		<property name="modelInvariantUUID" type="string">
            <column name="MODEL_INVARIANT_UUID" default="'MANUAL_RECORD'" not-null="true" length="200"/>
         </property>