REPO-1303: Update a group

- added update group capabilities.

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/BRANCHES/DEV/5.2.N/root@134418 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/rest/api/Groups.java

@@ -58,6 +58,21 @@ public interface Groups
      */
     Group create(Group group, Parameters parameters);
 
+    /**
+     * Update the given group. Not all fields are used, only those as defined in
+     * the Open API spec.
+     *
+     * @param groupId
+     *            the group ID
+     * @param group
+     *            details to use for the update
+     * @param parameters
+     *            the {@link Parameters} object to get the parameters passed
+     *            into the request including: - include param (parentIds, zones)
+     * @return Updated group
+     */
+    Group update(String groupId, Group group, Parameters parameters);
+
     /**
      * Get a group by it's id.
      *