Magna is a tree held together by Promises, using this you can use you own promises to delay the execution of children, at a low level Magna will run through the decision tree and fire every Promise at the same time waiting for parents to fulfill their promises before fulfilling their promise (top down), and the reverse when destroying, it will run (bottom up).
You can replace the default initPromise, destroyPromise & popstatePromise methods with whatever will make your
application work, however, this should only be for advanced users. Whenever you run the respective init, destroy
or popstate methods you can consume the responses using initResponse, destroyResponse & popstateResponse.