Adds better structured batch tests.
Adds better structured batch tests.

Use of async topic prevents individual fails from stopping subsequent tests from being run.

HossainKhademian/CleanCss,GerHobbelt/clean-css,island205/clean-css,yomed/clean-css,scottgonzalez/clean-css,stuht/clean-css,shelsonjava/clean-css,webconnex/clean-css,vlajos/clean-css,MartyIX/clean-css,jakubpawlowicz/clean-css