Fixes sortation of delivery and payment options in performance test data
Uses MShop_Factory instead of custom method and refactors addProduct() implementation in basket controller
Ignores directories with generated content
Replaces static class variables to prevent using wrong context
Fixes usage of wrong site in performance test
Updates translation files and adds missing German translations
Merge pull request #256 from nsendetzky/master

Refactors controllers and fixes a bug in the performance test