What happened to System.Data.Entity.DbConfiguration class in EF7

I am trying to add the MySQL Connector/Net provider for EF7: using one of the following. But System.Data.Entity does not have a class DbConfiguration in EF7. Has this class been moved or am I expected to do something different to add the MySQl provider?

1)Adding the DbConfigurationTypeAttribute on the context class:

[DbConfigurationType(typeof(MySqlEFConfiguration))]

or

2)Calling

DbConfiguration.SetConfiguration(new MySqlEFConfiguration()) 

at the application startup