fix file validation to use PHP native method
Add new argument to function getImages

1st: The function will return the product attribute id's with the list.
2nd: If product attribute id is passed to the function it will return
only the image id of the given attribute.
[*] BO: sort modules name in Stats
Fix variable context

Avoid attribution to the variable $newProducts inside the if. It caused the code to potentially misbehave throwing errors of:
"variable $newProducts not defined".
[+] BO : add TinyMCE editor for supplier descrpition in AdminManufacturerSupplier
[-] fix typo in adding TinyMCE editor for supplier descrpition in AdminSuppliersController
Merge pull request #678 from gr4devel/patch-5

[*] BO : add TinyMCE editor for supplier descrpition in AdminSuppliers
[-] INSTALLER : Fix fatal error in upgrade, could not load configuration class
Merge branch 'development' of https://github.com/PrestaShop/PrestaShop into development
// states list
Merge pull request #665 from Ha99y/Get-Combination-Images

[*] CLASSES : Add $id_product_attribute param to Image::getImages
Merge pull request #663 from sjousse/patch-1

[-] MO : Shopimporter file_exists does not exists in Validate Class
Merge pull request #676 from dlage/patch-1

[*] MO : blocknewproducts avoid $newProducts not defined
[-] CORE : Remove PHP Warning:  file_put_contents on modules config.xml
[-] BO : FixBug #PSCFV-10213 check product/attribute id - Thanks F. Cespedes
Merge branch 'development' of https://github.com/PrestaShop/PrestaShop into development
BO: Cursor "pointer" for .button 

Cursor "pointer" for each button in back office
Merge pull request #674 from PrestaEdit/patch-50

[*] BO: sort modules name in Stats
Merge pull request #679 from kluevandrew/patch-3

[*] BO : Cursor "pointer" for .button class
// fix warning