Improve the compatibility with Joomla 1.6.0.

Fix a bug to verify the condition when the "refresh icon" must be displayed.
The problem identified concern the comparison of two DB with different DB User and Password.
In the case, the connection to the new DB with a different MySQL user and password had failed.
The fix now provide a Joomla 1.6 DB connection compatibilty.

Improve the performance in the back-end when computing the "refresh icon".

When displaying the "refresh icon", all the website DB are compared with its "website templates" DBs.
We added a cache on the DB queries to improve the performance during the comparison of the DBs tables.

Bundled with Patch definition 1.2.54

• Add a partial patches for Rockethemes Gantry Framework 3.1.4.
  Remark: The patch is partial.
  Only the "save" button in the update of a template parameter save as Rockethemes does not "hacked" the code.
  Concerning the "Apply" button, Rocketthemes continue to update the "master" parameters file and not the slave one.
  The patch is not possible as present in an "encrypted/packed" file.
• Add patches for Joomlart T3 framework V2.
  T3 framework 2009 does not need patches and is perfectly OK.
• Fix a bug present in Joomla 1.5.16 and higher that create duplicated session and forbid the Single Sign-In.
  As Joomla didn't yet solved the problem of session after they changed their algorithm to try improvin the login security, this patch consists in applying the roolback to the Joomla 1.5.15 implementation in aim to allow the Single Sign-In when working on the same domain.
• Add JMS Tools (install) definitions for :
  - iJoomla Sidebars,
  - Ambra subscription,
  - Amigo,
  - Juga plugin and modules,
  - DJ-Catalog2,
  - Sexy Bookmarks,
  - sh404sef modules and plugins.
• Add Joomla 1.6 sharing definition for:
  - CB 1.4