Improves plugin demo data
Improves coupon manager tests to get stable results

Conflicts:

	lib/mshoplib/tests/MShop/Coupon/Manager/Code/DefaultTest.php
Removes side effect due to catalog index cleanup
Adds increase() method in coupon code manager

Conflicts:

	lib/mshoplib/tests/MShop/Coupon/Manager/Code/DefaultTest.php
Fixes after merging from main repository

Conflicts:

	lib/mshoplib/src/MShop/Coupon/Provider/FixedRebate.php
Merge pull request #599 from nsendetzky/2014-04-30_stable-fixes2

Fixes coupon tests, removes index cleanup side effects and Improves plugin demo data
Enables managing multi-dimensional configuration data
Fixes missing render listener extension for ConfigUis
Merge pull request #600 from nsendetzky/2014-04-30_stable-fixes2

Enables managing multi-dimensional configuration data
Merge branch 'master' of https://github.com/Arcavias/arcavias-core
Prevents adding duplicate coupon codes to get reductions more than once
Doesn't check prices of products added by coupon providers
Implements coupon code handling and tests in basket controller
Implements client html coupon frontend parts and tests