* Add dev mode error for fork

* Fix test

Leverage TS 3.6 generator return types for Saga Iterators.

Also removed files that should have remained untracked and that have
confused dtslint.

Reword api docs for PUT

doc: takeLatest: "spawns" => "forks"

Fix grammar mistake in docs

Add an article to external resources

do not attach cancel functions on noop

Hi! I wrote an article about Redux-Saga on my blog. The idea is to understand it better by reimp...

See https://github.com/redux-saga/redux-saga/pull/1892#discussion_r304728796

- Add a generic return type to SagaIterator
- Update effect types to set the proper return type
...

Update Root Saga Patterns docs

Add html-webpack-plugin module in package.json

Update pronoun usage in FutureActions.md

1848 Fix broken unpkg links for redux-saga

Update HelperWorkerParameters to match saga that don't use action

Fix error in docs: rootSaga pattern code example

The array of sagas needs to be passed to an `all` which is missing

Remove unnecessary exports in Beginner Tutorial's code snippet

switch `his` to `their`

Book: specify language

Fix and improve debounce code example in API reference

when we refactor, we only need to export the rootSaga and not incrementAsync() & watchIncrementA...

Add cancel function to the object returned by createMockTask

Fix one of the tests for `put` effect.

Use yarn and its workspaces

Prevent cancellation of ended joined tasks

Babel-plugin dont handle empty location

typings: fix `take` typings for array of heterogeneous action creators

Cancelling a join task caused all nested forked tasks to be cancelled as
well, regardless of the...

fix link in API docs

`race(effects)` link pointed at `#alleffects`.

Minor grammar fixes to docs.

fix: import in testing code example

updated README_ja.md based on 1cfd88d