Allow to register custom rivers under a custom type name (And not full class names)

[kimchy]

Allow to register custom rivers under a custom type name (And not full class names) easily. For example:

public class TwitterRiverPlugin extends AbstractPlugin {

    @Inject public TwitterRiverPlugin() {
    }

    @Override public String name() {
        return "river-twitter";
    }

    @Override public String description() {
        return "River Twitter Plugin";
    }


    @Override public void processModule(Module module) {
        if (module instanceof RiversModule) {
            ((RiversModule) module).registerRiver("twitter", TwitterRiverModule.class);
        }
    }
}

The processModule can register the twitter type for the twitter river module that handles it.

[kimchy]

Allow to register custom rivers under a custom type name (And not full class names), closed by 45ec2c6.