triggered 0.1.1

Triggers for one time events between tasks and threads
Documentation
# Changelog
All notable changes to this project will be documented in this file.

The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).

### Categories each change fall into

* **Added**: for new features.
* **Changed**: for changes in existing functionality.
* **Deprecated**: for soon-to-be removed features.
* **Removed**: for now removed features.
* **Fixed**: for any bug fixes.
* **Security**: in case of vulnerabilities.


## [Unreleased]


## [0.1.1] - 2020-05-01
### Added
- Add `is_triggered` method to both `Trigger` and `Listener`.


## [0.1.0] - 2020-04-20
First version