keep a changelog Files

Added

• New visual identity by @tylerfortune8.
• Version navigation.
• Links to latest released version in previous versions.
• "Why keep a changelog?" section.
• "Who needs a changelog?" section.
• "How do I make a changelog?" section.
• "Frequently Asked Questions" section.
• New "Guiding Principles" sub-section to "How do I make a changelog?".
• Simplified and Traditional Chinese translations from @tianshuo.
• German translation from @mpbzh & @Art4.
• Italian translation from @azkidenz.
• Swedish translation from @magol.
• Turkish translation from @karalamalar.
• French translation from @zapashcanon.
• Brazilian Portugese translation from @Webysther.
• Polish translation from @amielucha.
• Russian translation from @aishek.
• Czech translation from @h4vry.
• Slovak translation from @jkostolansky.
• Korean translation from @pierceh89.

Changed

• Start using "changelog" over "change log" since it's the common usage.
• Start versioning based on the current English version at 0.3.0 to help translation authors keep things up-to-date.
• Rewrite "What makes unicorns cry?" section.
• Rewrite "Ignoring Deprecations" sub-section to clarify the ideal scenario.
• Improve "Commit log diffs" sub-section to further argument against them.
• Merge "Why can’t people just use a git log diff?" with "Commit log diffs"
• Fix typos in Simplified Chinese and Traditional Chinese translations.
• Fix typos in Brazilian Portuguese translation.
• Fix typos in Turkish translation.
• Fix typos in Czech translation.
• Fix typos in Swedish translation.
• Improve phrasing in French translation.
• Fix phrasing and spelling in German translation.

Removed

• Section about "changelog" vs "CHANGELOG".