Victorpy

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- Fix `port` bug on build.

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- Fix `port` bug on build.

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- Provide `engine` parameter in site context.
- Show version when starting cli.
- Update doc site (installation process).

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- Fix installation troubles, using setuptools.
- Handle missing config.yaml file properly.

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- Enable `-p` (or `--port`) command line option for live server.
- Add meta `generator` on default base template.
- Fix `KeyError: 'base_url'` when undefined in `config.yaml`.
- Fix a typo on `README.md`.

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- Refactoring to allow proper cli execution after `setup.py` installation.