feat(kff.BindingView): collection binding should also work with plain arrays.

Arrays can be used together with plain object models to render lists or event whole object structures without use of Model or Collection classes. The new ':list' modifier must be used to indicate 'array as collection' binding, because array can be also used as attribute value (for example in select multiple). Array binding is not watched, any change have to be manually rerendered by refreshAll method.