childPromiseLinkedList:  Implemented a linked list-like functionality, using optional child promises. - This allows multiple then blocks to be executed by each additional one past the first being put into a child promise and appended to the end of the list. - Also added explicit access-level notation to all methods and properties.
childPromiseLinkedList:  Implemented a linked list-like functionality, using optional child promises.
- This allows multiple then blocks to be executed by each additional one past the first being put into a child promise and appended to the end of the list.
- Also added explicit access-level notation to all methods and properties.

jakehawken/Concurrency,jakehawken/Concurrency