V1.2.0

Preamble

Base release version which includes major updates

Feature(s)

- Source code refactored
- Removed unfinished features and replaced them into further featured branches
- Major update on both 'runtime' and 'dev' libraries
- Modules updated to `Esnext`

Limitation(s)

- `chai` and `chai-as-promised` testing library were not upgraded

Well-Known bug(s)

- Please refer to the previous log version
- If you're encountering any problem(s), bug(s), please don't hesitate to report! Thanks!