Release 0.16.4

[FlorianRappl]

Types of Changes

Prerequisites

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• [x] I have read the CONTRIBUTING document
• [x] My code follows the code style of this project

Contribution Type

What types of changes does your code introduce? Put an x in all the boxes that apply:

• [x] Bug fix (non-breaking change which fixes an issue, please reference the issue id)
• [x] New feature (non-breaking change which adds functionality, make sure to open an associated issue first)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)
• [ ] My change requires a change to the documentation
• [ ] I have updated the documentation accordingly
• [ ] I have added tests to cover my changes
• [x] All new and existing tests passed

Description

Fixes the dependency to AngleSharp and makes the color struct public.

We should really fix the Linux build (it is failing due to some dependency in the perf eval project).