docs(Readme): add installation and usage
fix(unit): add missing digest to no-op spec
fix(svgDirs): only apply fix if html5Mode AND history.replaceState is supported
docs(Readme): add note about what attributes are supported and when they are rewritten
fix(svgDirs): remove duplicate urlResolve functionality
style(svgDirs): add some line breaks
test(unit): improve quality/explicitness of tests