Patch Version 1.2.49 : Add several forms extension and improve single sign-in

This Jms Multisites patches definition add a patch for the All Video download script. The patch computes the "document root" directory based on the deployed directory. The sitePath "document root" directory was not correct when using Symbolic Link.

It also add the JMS Tools (install) definitions for :

• All Video,
• Ninja Content 1.5 (Ninja 1.5, Nooku Framework, Koowa system plugin)