CAS-1278: fluid reordering javascript throws js exception on add/edit service page

The fluid reordering javascript utilized in services management should only be included on the main manage.jsp page.
https://issues.jasig.org/browse/CAS-1278
Merge pull request #330 from Unicon/CAS-1278

CAS-1278: fluid reordering javascript throws js exception on add/edit service page