Release v0.4.0

Refactoring.

- Use github.com/deanishe/awgo

Changes

- Make query string as optional

Release v0.3.1

Support go 1.13.

No fix.

v0.3.0: Faster than before

This release include following changes

- Using goroutine in order to improve performance
- Refactoring

v0.2.0: Actual 'First Release'

Add following feature.
* Use case insensitive search.

v0.1.2: Forgot `-r` option......

Fix:

* Not include icon images.

v0.1.1: Fix:

* Icon images not included in workflow package.

v0.1.0

First release.