Remove the default value for datetime picker field

demo/date.html

@@ -11,9 +11,9 @@
     <script type="text/javascript" src="../dist/js/bootstrapValidator.js"></script>
 
     <!-- Support datetime picker plugin: http://eonasdan.github.io/bootstrap-datetimepicker/ -->
-    <link rel="stylesheet" href="http://eonasdan.github.io/bootstrap-datetimepicker/content/bootstrap-datetimepicker.css"/>
-    <script type="text/javascript" src="http://eonasdan.github.io/bootstrap-datetimepicker/scripts/moment.js"></script>
-    <script type="text/javascript" src="http://eonasdan.github.io/bootstrap-datetimepicker/scripts/bootstrap-datetimepicker.js"></script>
+    <link rel="stylesheet" href="//eonasdan.github.io/bootstrap-datetimepicker/content/bootstrap-datetimepicker.css"/>
+    <script type="text/javascript" src="//eonasdan.github.io/bootstrap-datetimepicker/scripts/moment.js"></script>
+    <script type="text/javascript" src="//eonasdan.github.io/bootstrap-datetimepicker/scripts/bootstrap-datetimepicker.js"></script>
 
     <style type="text/css">
     /* Override to make the feedback icons shown properly */
@@ -71,7 +71,7 @@
                             <label class="col-lg-3 control-label"><a href="http://eonasdan.github.io/bootstrap-datetimepicker/">DateTime Picker</a> (MM/DD/YYYY h:m A)</label>
                             <div class="col-lg-5">
                                 <div class="input-group date" id="datetimePicker">
-                                    <input type="text" class="form-control" name="datetimePicker" value="03/12/2001 10:12 PM" />
+                                    <input type="text" class="form-control" name="datetimePicker" />
                                     <span class="input-group-addon"><span class="glyphicon glyphicon-calendar"></span></span>
                                 </div>
                                 <span class="help-block">Choose a leap year</span>