Merge pull request #515 from cookiekiller/master

Fix broken drag&drop groups
Fixes year of implementation
Implements media infrastructure with GDLib based image handling
Uses new media infrastructure for scaling uploaded images
Merge branch 'master' of https://github.com/Arcavias/arcavias-core
Merge pull request #516 from nsendetzky/master

Implements media infrastructure and uses it for scaling uploaded images
Updates the mini basket by using the standard one

The implementation doesn't rely any more on the availability of the mini basket on the same page as the standard basket
Merge pull request #517 from nsendetzky/master

Updates the mini basket by using the values from the standard basket
Keeps product list sortation during filtering
Merge pull request #518 from nsendetzky/master

Keeps product list sortation during filtering
Renames l-product-id to d-... so the parameter is moved to the catalog detail domain
Merge pull request #519 from nsendetzky/master

Renames l-product-id to d-... so the parameter is moved to the catalog detail domain
Displays address language selection only if there are several choices
Merge pull request #520 from nsendetzky/master

Displays address language selection only if there are several choices
Enables filtering when clicking on the attribute name or count
Merge pull request #521 from nsendetzky/master

Enables filtering when clicking on the attribute name or count
Fixes selecting a suggested product name in autocomplete list of search filter
Checks for non-numeric quantity values for ordered products
Fixes product position stability in delete/re-insert situations
Enables reverse sorting and uses better symbols for pagination