Provide a mechanism for the server to notify the synchronization service about
any schema changes that occur.  The synchronization service can already handle
schema changes that occur over protocol with the server online, but this set of
changes adds support for detecting schema changes made by directly editing the
schema configuration files with the server offline, as well as new schema
elements added through the add schema file task.

Reviewed By:  Gilles Bellaton
OpenDS Issue Number:  1315