Atmire dspace 3.0 versioning contribution

Versioning : Add Spring WebMVC Control
Versioning : AIP Prototype Test Improvements.

dspace-api/src/main/java/org/dspace/versioning/ItemVersionProvider.java

@@ -0,0 +1,24 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.versioning;
+
+import org.dspace.content.Item;
+import org.dspace.core.Context;
+
+/**
+ *
+ *
+ * @author Fabio Bolognesi (fabio at atmire dot com)
+ * @author Mark Diggory (markd at atmire dot com)
+ * @author Ben Bosman (ben at atmire dot com)
+ */
+public interface ItemVersionProvider {
+    public Item createNewItemAndAddItInWorkspace(Context c, Item item);
+    public void deleteVersionedItem(Context c, Version versionToDelete, VersionHistory history);
+    public Item updateItemState(Context c, Item itemNew, Item previousItem);
+}