Changelog for extensible-effects-concurrent

0.1.2.0

* Add Observer module
* Implement Exception handling
* Improve Dispatcher shutdown
* Add logging support via the logging-effect library

0.1.1.0

* Substantial API reoganization
* Rename/Move modules

0.1.0.1

* Stack/Cabal/Github Cosmetics
* Travis build job

0.1.0.0

* Initial Version