filesystem: implement filesystem watcher I also ported the library code to use it as well. Once we implement proper directory watching on Windows (and maybe others) this will be fairly useful :)

// Progress bars

.progress-bar-variant(@color) {
  background-color: @color;

  // Deprecated parent class requirement as of v3.2.0
  .progress-striped & {
    #gradient > .striped();
  }
}