Feature/upgrade cakephp 2.0.5 to 2.5

Caution : Please  test this on a separate development environment 

Install Composer follow the link below
https://getcomposer.org/doc/00-intro.md

After  you move this branch in the vusion-frontend run 
 $ composer install 

this command will install cakephp 2.5.5 (vendor/cakephp/cakephp)