Change strophe.mam.v0.3.js to works

[icaro56]

Change to:

/* XEP-0313: Message Archive Management

• Copyright (C) 2012 Kim Alvefur
  *
• This file is MIT/X11 licensed. Please see the
• LICENSE.txt file in the source package for more information.
• Modified by: Chris Tunbridge (github.com/Destreyf/)
• Updated to support v0.3 of the XMPP XEP-0313 standard
• http://xmpp.org/extensions/xep-0313.html
  *
  */
  (function(){
  'use strict';

Strophe.addConnectionPlugin('mam', {
_c: null,
_p: [ 'with', 'start', 'end' ],
init: function (conn) {
this._c = conn;
Strophe.addNamespace('MAM', 'urn:xmpp:mam:0');
},
query: function (jid, options) {
var _p = this._p;
var attr = {
type:'get',
id:jid
};
var mamAttr = {xmlns: Strophe.NS.MAM};
if (!!options['queryid']) {
mamAttr.queryid = options['queryid'];
delete options['queryid'];
}
var iq = $iq(attr).c('query', mamAttr).c('x',{xmlns:'jabber:x:data', type:'submit'});

    iq.c('field',{var:'FORM_TYPE'}).c('value').t('urn:xmpp:mam:0').up().up();
    var i;
    for (i = 0; i < this._p.length; i++) {
        var pn = _p[i];
        var p = options[pn];
        delete options[pn];
        if (!!p) {
            iq.c('field',{var:pn}).c('value').t(p).up().up();
        }
    }
    iq.up();

    var onMessage = options['onMessage'];
    delete options['onMessage'];
    var onComplete = options['onComplete'];
    delete options['onComplete'];
    iq.cnode(new Strophe.RSM(options).toXML());

    this._c.addHandler(onMessage, Strophe.NS.MAM, 'message', null);
    return this._c.sendIQ(iq, onComplete);
}

});

})();