Reading a model from MS SQL Server 2005 only succeeds for tables in the "dbo" schema

When Platform.readModelFromDatabase is used to read the model of a SQL Server 2005 database, it fails for tables that are in a schema other than "dbo".

There are several places in the code where the schema name should be specified, but is not. For example, in JdbcModelReader.determineAutoIncrementFromResultSetMetaData the table name should be qualified by the schema name.

It's also necessary to change the way indices and primary & foreign keys are read in DatabaseMetaDataWrapper. Currently the schema pattern is always null. This works for tables in the "dbo" schema, but not for others.