Version 1.2.42 : Add compatibility with Joomla 1.5.22 and partial compatibility with Joomla 1.6 beta 13

This Jms Multisite version add the compatibility with Joomla 1.5.22 and also a partial compatibility with Joomla 1.6 beta 13.
It fixes severa screen rendering to work with Joomla 1.6 beta 13.

It is also bundled with jms multi site patch definition 1.2.48 that :

• Include the fix for an existing patch that accept to share the sessions between subdomains or subdirectories and that is now compatible with Joomla 1.5.22.
• Add JMS Tools (install) definitions for :
  - Copyright Current Year,
  - jDownloads,
  - JW Tabs & Slides Module