Add support for 2012.

Author: metaskills

lib/active_record/connection_adapters/sqlserver_adapter.rb

@@ -181,7 +181,7 @@ class SQLServerAdapter < AbstractAdapter
 
       ADAPTER_NAME                = 'SQLServer'.freeze
       DATABASE_VERSION_REGEXP     = /Microsoft SQL Server\s+"?(\d{4}|\w+)"?/
-      SUPPORTED_VERSIONS          = [2005,2008,2010,2011].freeze
+      SUPPORTED_VERSIONS          = [2005,2008,2010,2011,2012]
 
       attr_reader :database_version, :database_year, :spid, :product_level, :product_version, :edition
 
@@ -330,6 +330,10 @@ def sqlserver_2011?
         @database_year == 2011
       end
 
+      def sqlserver_2012?
+        @database_year == 2012
+      end
+      
       def sqlserver_azure?
         @sqlserver_azure
       end