EB-7759 use customer sku nstead of dist sku if customer sku exist

git-svn-id: svn+ssh://10.208.165.230/var/svn/stjohn/trunk@19 cb34496e-5fd4-4bb1-8cc7-e455c5ced60c
Merge branch 'master' of veritivgit:Veritiv/stjohn