Batch update does not work for tables that are in a different schema than the default

[cteiosanu]

The current implementation of the batch update can't update tables that reside in a different schema than "dbo" (and this is confirmed by the SqlQueryProvider implementation)

[RubberChickenParadise]

I have added a pull request #60 to resolve this issue. The Schema was being passed in but never actually inserted into the update string.

[denis-bondarenko]

it would be nice to merge #60 and update nuget package