Merge pull request #26 from artur-polcode/10611MagentoPatch

Applied patch PATCH_SUPEE-2518_CE_1.5.1.0-1.7.0.2_v1
Hide Incl. 21% BTW for B2C/B2B customer group
Merge pull request #28 from artur-polcode/6948ShippingCosts

6948 shipping costs