Force shop_id for 'all shops' context

http://forge.prestashop.com/browse/PSCFV-11971
// blockcart + iframe
[-] IN : Followup #PSCSX-1995
[-] BO : Fix #PSCSX-2003, prevent shop url lik category image rwrite
//added addons themes in BO
// Check defines
[-] F0 : Fix bug #PSCSX-2011 regex_replace in block languages
//small fix
Update informations.tpl

Need to add this line to support multishop.
Without this line you can't change the product name with all shops in context, and enabling the multishop button on top.
[-] LO : #PSCSX-2009 fix taxRulesGroup in nl.xml
[-] FO : Fix bug #PSCSX-2014, bad carrier in OPC
Merge pull request #1757 from joeph/joephdev

[-] LO : #PSCSX-2009 fix taxRulesGroup in nl.xml
// follow up https://github.com/PrestaShop/PrestaShop-1.5/pull/9
Merge pull request #1756 from sadlyblue/patch-1

[*] BO : product name with all shops in contex
// customer list : sales are taxes included
[-] CORE : Fix bug #PSCFV-11298, context in single shop on module install
Merge branch '1.6' of https://github.com/PrestaShop/PrestaShop into 1.6
strtolower from Tools
// Submodules updated
Merge pull request #1758 from DevNet/patch-8

[*] CORE : Tools::strtolower() in Tools.php