function qsParser(req,res,next) {
  var queryStringPos = req.url.indexOf('?');
  if (queryStringPos !== -1) {
    req.query = _.merge(req.query, QS.parse(req.url.substr(queryStringPos + 1)));
  }
  else {
    req.query = req.query || {};
  }
  next();
}
Given a route target configuration, return an action identity for that target.
@param  {Dictionary|String} target The route target to get an action identity for
@return {String}        An action identity like `user/find`