Optimize cart totals retrieving from menu builder
Fix VariantCombinationValidator and backend variants display to work with products without options.
Fix template condition to keep tests passing.
Removing address forms from backend user form
Merge pull request #900 from winzou/frontend/menu

Optimize cart totals retrieving from menu builder
Merge pull request #903 from Richtermeister/product-without-options

Fix variant validation and backend display for products without options.