about (en): Added breadcrumb for mobile devices
contact (en): Added breadcrumb for mobile devices and cleaned a bit the UI.
includes/header (en): Modified location of the change language
includes/portfolio-subnav (en): Added breadcrumb for mobile devices
includes/portfolio_extra (en): Added link to home in the breadcrumb
includes/portfolio-subnav (en): Changed dropdown message depending on the page
Fixed issue with the current element in the breadcrumb
Added breadcrumbs to all the projects
Remove hr and hide for phone
Added breadcrumbs to Eva Criado project
portfolio (en): Removed the front image for some projects in the phone version
Improved navigation for the Spanish version as has been done with the English one