Updated CHANGELOG for release v1.7.0 (aws#354)

* Updated CHANGELOG for release v1.7.0

* Added go dep removal in CHANGELOG

* Updated config file version to 1.7.0

* Updated CHANGELOG

* Modified release date

Updated CHANGELOG for release v1.6.0 (aws#317)

Release v1.5.0 (aws#307)

* Update CHANGELOG.md

* Update config.go

* Update CHANGELOG.md

Release v1.4.0 (aws#298)

* Added sample apps code

* manual workflow

* remove workflow file

* release workflow

* revert release workflow from master

* manual workflow to run

* remove release workflow

* Release v1.4.0

* added spacing in README

Release v1.3.0 (aws#276)

* Added sample apps code

* manual workflow

* remove workflow file

* release workflow

* revert release workflow from master

* manual workflow to run

* remove release workflow

* added changelog for v1.3.0 release and modify config

* Update CHANGELOG.md

release v1.2.0

prepare for release v1.1.0 (aws#237)

prepare for release v1.0.1 (aws#226)

prepare for GA release v1.0.0(aws#216)

Please refer changelog for details.