release v2.0.0 (2017-03-12)

Added

• Metadata: Add chef_version.
• Metadata: Remove grouping (RFC-85).
• Add documentation for libraries.

Changed

• Prepare for Chef 13.
• README: Add badges: docu, github, license, code climate, coveralls, inch-ci.
• CHANGELOG: Follow "Keep a CHANGELOG".
• Update RuboCop to 0.47 and fix new offenses.

Removed

• Drop Ruby < 2.2 support.
• Drop Chef < 12 support.