refs #4523 whenever a css or less file changes, delete compiled css. I put this as a "workaround" in here as it solves the problem but maybe we wanna implement a solution in PHP though? If not, we could put this in another place maybe or leave it under tests. To make use of this just execute "cd tests/angularjs && grunt" after installing all the packages (see README). grunt will be notified whenever a file changes and immediately remove the compiled css