allow to trigger multiple callback with 1 route using a route separator

backbone-multirouter.js

Backbone.History.prototype.multiRouteSeparator = '|';

Backbone.History.prototype.loadUrl = function(fragment) {
    fragment = this.fragment = this.getFragment(fragment);
    // split the fragment according to the defined separator
    var fragments = fragment.split(this.multiRouteSeparator);

    // test handlers with each fragments
    // the function doesn't return anything like the real one
    // but it doesn't seems to create problems
    _.forEach(fragments, function(fragment) {
        _.any(this.handlers, function(handler) {
            if (handler.route.test(fragment)) {
                // execute the callback
                handler.callback(fragment);
                return true;
            }
        });
    }, this);
};