Merge pull request #4907 from Softpagehomeware/bugfix/marionette/generics_for_collections

fixed the Collection- / Composite child view issue.

backbone/backbone.d.ts

@@ -309,7 +309,8 @@ declare module Backbone {
 
    interface ViewOptions<TModel extends Model> {
       model?: TModel;
-      collection?: Backbone.Collection<TModel>;
+       // TODO: quickfix, this can't be fixed easy. The collection does not need to have the same model as the parent view.
+      collection?: Backbone.Collection<any>;
       el?: any;
       id?: string;
       className?: string;