Replace generic alert, form and table templates with new Bootstrap equivalents

templates/PhotosIndex.php

@@ -45,7 +45,7 @@ class PhotosIndex extends SubTemplate
 	protected function html_content()
 	{
 		echo '
-			<div class="tiled_grid">';
+			<div class="tiled_grid clearfix">';
 
 		for ($i = $this->row_limit; $i > 0 && $row = $this->mosaic->getRow(); $i--)
 		{