All credit to Tony Dewan for original library.
This is Carabiner implemented as a spark on getsparks.org. Once sparks is installed, load the spark with $this->load->spark('carabiner/1.5.4');. This will autoload the library and config.
This also adds Less CSS PHP compiling to the mix. Just pass .less files via $this->carabiner->css('file.less') and away we go! It puts the compiled css file into the configured cache folder before minifying and combining. NOTE: If you have any linked images, keep in mind that the path will be relative to the cache folder!
This repo contains the leafo.net LessPHP compiler as a submodule. If you're cloning this directly rather than loading as a spark, be sure to git submodule update --init after cloning.