Revert "Version 1.0.4"

This reverts commit fba487bc1a03fe4a9d5dbd10243b0f978aec1ae1.
Revert "Revert "Use cssstyle 0.2.20 instead of cssstyle-browserify""

This reverts commit 24893b697661b7edb31b826fe7e12a1aaaff9889.
Require cssstyle >= 0.2.21 since 0.2.20 was unpublished