code: function getModulesTasks(baseTask, app) {
  	var tasks = [];
  	var modules = getModules(app);
  
  	if (modules) {
  		for (index = 0; index < modules.length; ++index) {
  		    tasks.push(baseTask + '.' + modules[index]);
  		}
  	}
  
  	return tasks;
  }
docs: Function to ease the modules management
  
  @param   string  baseTask  Task to use as root. Example: 'clean:modules'
  @param   string  app       'frontend', 'backend'
  
  @return  array