touch of objects triggers syncing

[croqueGrec09]

As discussed:

In order to trigger syncing process via OAI, an update of timestamp of objects without actually changing them, i.e. a "touch", is necessary (like the terminal command in Unix does). Usually, changing and reverting fields like "List Status" or "Edit Status" does the effect. Trying this in gokb.org in order to cause a timestamp update in synchonising GOKb instances had no success. The following changes could thus solve the issue:

• an Admin-secured button/link to "touch" the Last Updated field of TIPPs, Platforms, Orgs, TitleInstances and Packages
• the propagation of Last Updated change events without field changes to the objects in the syncs concerning the object types listed above

[croqueGrec09]

Touching tested on test instance in three manners, each with expected behavior. Issue is closed successfully!