Kytos-utils

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No major changes since the last pre-release.

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Added
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- Added friendly message when user stops NApp creation.
- Added error handling for invalid token errors.

Changed
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- Updated dependencies.

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No changes since rc1.

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Added
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- Added a ``kytos bug-report`` command that prints environment information
for bug reports.

Fixed
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- Fixed path error to create ``skel`` files in ``python3.8``

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Changed
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- Changed ``setup.py`` to use ``python3`` instead of ``python3.6``

Removed
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- Removed ``python3.6`` references from ``README.rst`` and ``Makefile``

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Changed
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- Updated NApp template

Fixed
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- Fixed "NApp created" messages