Please add support for SQL Server 20014.

When trying to autodetect the best dialect to use, we recieve this error:

[code]WARN StandardDialectResolver - HHH000385: Unknown Microsoft SQL Server major version [12] using SQL Server 2000 dialect – [code]

Also if possible, please add a bit of logic where Hibernate does a graceful downgrade to latest known dialect (eg. SQL2012Dialect) if the dabase major version is larger than the current highest known version, so it doesn't revert to lowest common version.