Andrius

Introduce new method isSubscribed

2

It would be nice to have an method like `isSubscribed` which would have 2 arguments `$listId` and `$subscriberHash` and would return only `boolean`. `public function isSubscribed(int $listId, string $subscriberHash): bool`

Last PR triggers errors when file does not exists in system.

2

This PR `https://github.com/Litipk/flysystem-fallback-adapter/pull/2` created issue, you should revert these changes. How it was before: ``` if ($this->mainAdapter->has($path)) { return $this->mainAdapter->read($path); } ``` How it is now: ``` $result = $this->mainAdapter->read($path);...