Use proper @import rules.

[metaskills]

Fixes: Sass::SyntaxError: File to import not found or unreadable: icon-font.

I implemented a replace_file_imports similiar to bootstrap-sass's. These imports are now fully compliant with the proper path/namespace to use. In my example this fixes all imports like this.

@import "icon-font";

To this:

@import "flat-ui-pro/icon-font";

This follows the convention of an asset gem using the directory for the namespace and is exactly what bootstrap-sass does too.

[metaskills]

Also, I apologize for the whitespace noise. Someone said this setting was a good idea.

[metaskills]