A new version of SQL Server Data Tools ( SSDT) was released yesterday. You can read more here: http://blogs.msdn.com/b/ssdt/archive/2014/03/25/sql-server-data-tools-for-sql-server-2014-is-available.aspx. You can get the new version here: http://msdn.microsoft.com/en-us/data/hh297027
One of the coolest features in this version is the support for custom code analysis (yay finally). This version supports SQL Server 2014 also.