BUGFIX Added a clearing div after the date and time fields, not the b…

…est way of doing it but the only way as the overflow css trick for clearing fields doesn't work with the time dropdown (from r107811)

git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@112698 467b73ca-7a2a-4603-9d3b-597d59a354a9

forms/DatetimeField.php

@@ -49,7 +49,7 @@ function setForm($form) {
 	function Field() {
 		Requirements::css(SAPPHIRE_DIR . '/css/DatetimeField.css');
 
-		return $this->dateField->FieldHolder() . $this->timeField->FieldHolder();
+		return $this->dateField->FieldHolder() . $this->timeField->FieldHolder() . '<div class="clear"><!-- --></div>';
 	}
 
 	/**