Full Calendar JavaScript not showing anything in Visualforce page

<apex:page controller="Calendar" action="{!pageLoad}" standardStylesheets="false">
    <link href="{!$Resource.fullCalendarCSS}" rel="stylesheet" />
    <link href="{!$Resource.fullCalendarPrintCSS}" rel="stylesheet" media="print" />
    <script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jquery/1.10.1/jquery.min.js"></script>
    <script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jqueryui/1.10.3/jquery-ui.min.js"></script>
    <script src="{!URLFOR($Resource.FullCalendar,'lib/jquery.min.js')}"></script>
    <script src="{!URLFOR($Resource.FullCalendar,'lib/jquery-ui.custom.min.js')}"></script>
    <script src="{!URLFOR($Resource.FullCalendar,'fullcalendar/fullcalendar.min.js')}"></script>
    <script src="{!URLFOR($Resource.FullCalendar,'lib/moment.min.js')}"></script>
    <script type="text/javascript">
        var j$ = jQuery.noConflict(true);
        j$(function() {
        	j$('⌗calendar').fullCalendar({
                header: {
                    left: 'prev,next today',
                    center: 'title',
                    right: 'month.agendaWeek.agendaDay'
                },
                editable: false,
                events:
                [
                    <apex:repeat value="{!events}" var="e">
                    	{
                    		title: "{!e.title}",
                    		start: "{!e.startString}",
                    		end: "{!e.endString}",
                    		url: "{!e.url}",
                    		allDay: "{!e.allDay}",
                    		className: "{!e.className}"
                    	},
                    </apex:repeat>
                    	{
                    	}
                ]
			});
		});
	</script>
    <style>
		⌗cal-options {float:left;}
		⌗calendar {margin-top:20px;}
		⌗calendar a:hover {color:⌗fff !important;}
		.fc-event-inner {padding:3px;}
		.course {background:⌗56458c;border-color:⌗56458c;}
	</style>
	<apex:sectionHeader title="Cursos Calendar"/>
	<div id='calendar'></div>
</apex:page>

Controller:

public class Calendar {
    public List<CalEvent> events {get; set;}
    private static String dtFormat = 'EEE, d MMM yyyy HH:mm:ss z';
    public Calendar() {
    }
    public PageReference pageLoad() {
        events = new List<CalEvent>();
        for (Curso__c cur: [SELECT Name,
                           		   Fecha_de_Inicio__c,
                           		   Fecha_de_Finalizacion__c,
                           		   Frecuencia__c,
                           		   D_as__c
                            FROM Curso__c
                           ]) {
            List<Date> dates = CalculateDates.getDates(cur.Fecha_de_Inicio__c,
                                                       cur.Fecha_de_Finalizacion__c,
                                                       cur.D_as__c,
                                                       cur.Frecuencia__c
                                                      );
            for (Date dat: dates) {
            	CalEvent course = new CalEvent();
                course.title = cur.Name;
                course.allDay = true;
                DateTime d = (DateTime) dat;
                course.startString = d.format(dtFormat);
                course.endString = null;
                course.url = '/' + cur.Id;
                course.className = 'course';
                events.add(course);
            }
        }
        return null;
    }
    public class CalEvent {
        public String title {get; set;}
        public Boolean allDay {get; set;}
        public String startString {get; set;}
        public String endString {get; set;}
        public String url {get; set;}
        public String className {get; set;}
    }
}