[*] Class: Tools::fileAttachment()
[*] FO: use Tools::fileAttachment() in ContactController
Merge branch 'tools-fileAttachment' of https://github.com/PrestaEdit/PrestaShop into PrestaEdit-tools-fileAttachment

Conflicts:
	classes/Tools.php
	controllers/front/ContactController.php
Merge branch 'development' of https://github.com/PrestaShop/PrestaShop into development