use latest version of Sourcemaps package
use latest version of Sourcemaps package

contains a few performance improvements

kaufmo/koala-framework,kaufmo/koala-framework,kaufmo/koala-framework,nsams/koala-framework,nsams/koala-framework,koala-framework/koala-framework,koala-framework/koala-framework,yacon/koala-framework,nsams/koala-framework,yacon/koala-framework,yacon/koala-framework