Merge branch 'develop' of github.com:phpbb/phpbb3 into ticket/11667

# By Joas Schilling (224) and others
# Via Andreas Fischer (23) and others
* 'develop' of github.com:phpbb/phpbb3: (385 commits)
  [ticket/11734] Readd accidently removed language strings of forum permissions
  [ticket/11620] Whitespace and combine function into test_case
  [ticket/11620] Move check_ban_test functions to setUp/tearDown for clarity
  [ticket/11620] Changed incorrect global variable
  [ticket/11620] Minor indentation changes and comment clarity
  [ticket/11733] Fix "Illegal offset type" Warning caused by overall feed
  [ticket/11733] Add browse test for feed.php
  [ticket/11731] Remove static calls to captcha garbage collector
  [ticket/11728] Replace topic_approved with topic_visibility
  [ticket/11620] Expected and actual test conditions wrongly swapped
  [ticket/11620] Space between . in directory import concatenation
  [ticket/11620] Changes to match merge
  [ticket/11620] Changes for code guidelines consistency
  [ticket/11620] Fix a static calls to non-static for session captcha
  [ticket/11620] Cleanup creation_test that was renamed on a cherry-pick
  [ticket/11620] Update auth_provider for new interface
  [ticket/11620] Added garbage_collection_test
  [ticket/11620] Fixed check_ban_test errors with cache and ban warning message
  [ticket/11620] Fixed a typo on check_ban_test
  [ticket/11620]  Refactored check_isvalid_test to use session_test_case
  ...

phpBB/phpbb/template/twig/node/includecss.php

@@ -0,0 +1,36 @@
+<?php
+/**
+*
+* @package phpBB3
+* @copyright (c) 2013 phpBB Group
+* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
+*
+*/
+
+class phpbb_template_twig_node_includecss extends phpbb_template_twig_node_includeasset
+{
+	/**
+	* Get the definition name
+	*
+	* @return string (e.g. 'SCRIPTS')
+	*/
+	public function get_definition_name()
+	{
+		return 'STYLESHEETS';
+	}
+
+	/**
+	* Append the output code for the asset
+	*
+	* @param Twig_Compiler A Twig_Compiler instance
+	* @return null
+	*/
+	public function append_asset(Twig_Compiler $compiler)
+	{
+		$compiler
+			->raw("<link href=\"' . ")
+			->raw("\$asset_file . '\"")
+			->raw(' rel="stylesheet" type="text/css" media="screen, projection" />')
+		;
+	}
+}