@redux-requests/core v1.4.0

This release added mostly several things which were needed for new version of React bindings:

• added joinRequest action, so that you can attach to a pending request and get its response promise
• added new flag to resetRequests not to reset cached queries
• added addWatcher and removeWatcher actions - those are probably needed only for UI bindings like React internally
• reseted queries and mutations are actually removed from state, not remaining but with default values
• added disableRequestsPromise option to handleRequest, for now probably useful only with new suspense SSR mode for React