Joomla 1.7 compatibility

• Fix joomla 1.7 the database connnection when working with the cache.
• Update the Tool menu to display the extension title instead of their internal name.
  This also improve the matching between master and slave site extension definitions.
• Fix DB Connection when working with different server and users
• Fix the slave site creation when the letter tree is enabled and that the site ID has more than 20 characters. In this case, Joomla may report an error when creating the slave site.
  We fixed the website creation to split the site name is block of 10 characters to avoid the limit of 20 characters present in joomla JFolder::create.
• Update the "manage site" list to avoid double language conversion.

Bundled with Patch definition 1.2.68

• Add JMS Tools (install) definitions for :
  - Chola HTML5 Player,
  - CholaTube,
  - Fix Flexi Contact,
  - Update Frontpage SlideShow,
  - JS G-Kunena,
• Add Joomla 1.5 sharing definition for:
  - Add possibility to share JomSocial without its configuration
  - Chola Tube
• Add Joomla 1.6 sharing definition for:
  - Add possibility to share JomSocial without its configuration
  - K2
• Add Joomla 1.7 sharing definition for:
  -  Add possibility to share JomSocial without its configuration
  - K2