code: function distCssFiles() {
          var src = cog.pathDist() + cog.getConfig('name') + '.css';
          var subdir = cog.getConfig('src.css') || '';
          if (subdir && subdir.indexOf('*') >= 0) {
              subdir = subdir.substr(0, subdir.indexOf('*'));
          }
          var dst = cog.pathDist() + subdir + cog.getConfig('name') + '.min.css';
  
          return [{src: src, dst: dst}];
      }
docs: Get the name(s) of CSS-files in the distribution.