Fix 'InsertBatch'
Fixed formatting.
Updated server connection string.
Add constraints checks for SQL Server provider during bulk insertion.

See SqlDataProvider.SqlBulkCopyOptions.
Fix SqlServer's InsertBatch with transaction
Merge branch 'master' of https://github.com/igor-tkachev/bltoolkit

Conflicts:
	Source/Data/DataProvider/SqlDataProviderBase.cs
Remove wrong bulk options.