0.17.6

• Removes restrictions on filenames that can be used for assets. CSS assets no longer requires a .css extension, and likewise JavaScript assets no longer require a .js extension. It's up to you to make sure an asset is valid or not before it gets added to the page.
• When creating a Reference to a file that is not a child of the base dir, remove relative path segments so that it will be copied properly to the rendered site, and not outside of the build dir.
• Adds kotlinPlayground component to the OrchidSyntaxHighlighter artifact, for converting Kotlin code snippets into runnable playgrounds.