Allow the prepend the addCrumb method

Author: stakahashi

lib/Cake/Test/Case/View/Helper/HtmlHelperTest.php

@@ -1500,6 +1500,28 @@ public function testBreadcrumb() {
 			'Fourth'
 		);
 		$this->assertTags($result, $expected);
+
+		$this->Html->addCrumb('Zeroth', '#zeroth', array('prepend' => true));
+
+		$result = $this->Html->getCrumbs();
+		$expected = array(
+			array('a' => array('href' => '#zeroth')),
+			'Zeroth',
+			'/a',
+			'»',
+			array('a' => array('href' => '#first')),
+			'First',
+			'/a',
+			'»',
+			array('a' => array('href' => '#second')),
+			'Second',
+			'/a',
+			'»',
+			array('a' => array('href' => '#third')),
+			'Third',
+			'/a',
+		);
+		$this->assertTags($result, $expected);
 	}
 
 /**

lib/Cake/View/Helper/HtmlHelper.php

@@ -180,8 +180,17 @@ public function __construct(View $View, $settings = array()) {
  * @see HtmlHelper::link() for details on $options that can be used.
  * @link http://book.cakephp.org/2.0/en/core-libraries/helpers/html.html#creating-breadcrumb-trails-with-htmlhelper
  */
-	public function addCrumb($name, $link = null, $options = null) {
-		$this->_crumbs[] = array($name, $link, $options);
+	public function addCrumb($name, $link = null, $options = array()) {
+		$prepend = false;
+		if (isset($options['prepend'])) {
+			$prepend = $options['prepend'];
+			unset($options['prepend']);
+		}
+		if ($prepend) {
+			array_unshift($this->_crumbs, array($name, $link, $options));
+		} else {
+			array_push($this->_crumbs, array($name, $link, $options));
+		}
 		return $this;
 	}