v4 - multiple data transports within a single app

renamed isMounted to _isMounted to avoid conflict with react

renamed isMounted to _isMounted to avoid conflict with react

subscription lives a little longer than a component so we should not …

…update the component's state if it was unmounted or is just about to

unregister subscription should be done in a timeout 0

Fixed data mutation issue

Immutable response data

changed default payload and error values to undefined for better loda…

…sh support

changed default payload and error values to undefined for better loda…

…sh support

typo