Merge branch 'release/1.0.0' into develop

* release/1.0.0:
  version bump
1.0.1 Release

- Switched to Apache v2 License from BSD 3-Clause
- Added CHANGELOG.md
- Updated README.md
- Added `:upgrade` action to installation list
Merge branch 'release/1.0.1'

* release/1.0.1:
  1.0.1 Release