Merge pull request #45 from cmuench/master

Fixed fatal error if "false" as block was given.

app/code/community/EcomDev/PHPUnit/Model/Layout.php

@@ -321,7 +321,7 @@ class EcomDev_PHPUnit_Model_Layout
     {
         $this->_collectedBlock = null;
         parent::_generateBlock($node, $parent);
-        if ($this->_collectedBlock !== null) {
+        if ($this->_collectedBlock) {
             $target = $this->_collectedBlock->getNameInLayout();
             $params = array();
             if (isset($node['as'])) {