(in progress) version "next"

- [x] add clonable properties on mixins
- [x] WBStateMixin for creating models
- [x] WBDestroyableMixin
- [x] WBUtilsMixin
- [x] WBStateModel
- [x] more helpers in the lib folder (to remove lodash from sdk/sync)

### Later
- [ ] specs for everything & 100% coverage
- [ ] refactor WBBindableMixin to bring it under acceptable complexity limits
- [ ] merge lib/events into WBEventsMixin
- [ ] add deferred piping (syntactic sugar)