[added] right-to-left support

Author: jquense

examples/demos/cultures.js

@@ -15,13 +15,16 @@ let Cultures = React.createClass({
 
   render(){
     let cultures = ['en', 'en-GB', 'es', 'fr', 'ar-AE']
+    let rtl = this.state.culture === 'ar-AE';
 
     return (
       <div>
         <h3 style={{ marginBottom: 20 }}>
           <label>Select a Culture</label>
           {' '}
           <select
+            className='form-control'
+            style={{ width: 200, display: 'inline-block'}}
             defaultValue={'fr'}
             onChange={e => this.setState({ culture: e.target.value })}
           >
@@ -33,6 +36,7 @@ let Cultures = React.createClass({
           </select>
         </h3>
         <BigCalendar
+          rtl={rtl}
           events={events}
           culture={this.state.culture}
           defaultDate={new Date(2015, 3, 1)}

examples/demos/selectable.js

@@ -14,6 +14,8 @@ let Selectable = React.createClass({
           selectable
           events={events}
           defaultView='week'
+          min={new Date(2015, 3, 1, 4, 0, 0)}
+          max={new Date(2015, 3, 1, 16, 30, 0)}
           defaultDate={new Date(2015, 3, 1)}
           onSelectEvent={event => alert(event.title)}
           onSelectSlot={(slotInfo) => alert(