Implemented basic host flow permissions.
Implemented basic host flow permissions.

Flows may be instantiated with either configuration options:
 - cfg.hostKey : a unique JavaScript value/reference
 - cfg.cedeHosts : an array of hostKeys that a parent flow must match, in order to invoke privileged proxy methods

This approach will allow for master flows, which are needed for modular and embedded flow interactions.

bemson/salt,npmcomponent/bemson-salt