v0.8.0

What's Changed

• fix: Vary HTTP header by @dunglas in #136
• Prevent damage to /* ... */ comments with missing source maps by @pond in #132
• Adds support for relative url root by @markstanley-nps in #138
• Update warning message to use correct location by @phantomwhale in #146
• Source maps do not have to be on their own line by @pond in #133
• Add helper to include all stylesheets in the load path by @dhh in #154
• Use rack constants for headers by @brenogazzola in #147

Full Changelog: v0.7.0...v0.8.0