v1.1.1

Fix a bug when calling Unsubscribe. The subscription internal state was not getting closed.

v1.1.0: Add with (#7)

* added With option

* added tests

v1.0.0

add multiple topic subscribers (#5)

in some cases the subscribers need to subscrible for multiple topics
and the `*` isn`t enought.

Now all the subscribers can subscribe to multiple topics.
Reducing the use of select from multiple channels