* Make dynamic import spec compliant.
Now we simply return the whole module incl. default field
In 'next/dynamic' we pick the default field if there is.
Since modules with default is mostly used next/dynamic, for the enduser, this change has no effect.
* Rename module into m
Using module could be confusing.
* Layout ground works for next/async
* Implement the Dynamic Bundle feature.
* Add some test cases.
* Update README.
* Implement props aware dynamic bundle API.
* Update tests and README.
* Add a test case for React Context support.