Merge remote-tracking branch 'upstream/develop' into ticket/11015

* upstream/develop: (666 commits)
  [ticket/11077] Remove code from old global announcements system
  [ticket/11189] Replace DEBUG_EXTRA with DEBUG
  [ticket/11189] Always log critical errors when in cron or in image output
  [ticket/11187] Added a blank array to fix errors in functional tests
  [ticket/10780] Make L_COLON available in the installer.
  [ticket/11183] Remove $load_extensions and weird dl() calls
  [ticket/10970] Added extra documentation to parse_dynamic_path.
  [ticket/10939] Added documentation for phpbb_request::file
  [ticket/10865] Use code tags for install/database_update.php.
  [ticket/10865] Should have been a slash.
  [ticket/10780] Use L_COLON on LDAP page.
  [ticket/10780] Use L_COLON on search backend ACP pages.
  [ticket/10780] Use L_COLON for "download all attachments".
  [ticket/10780] Use colon from language in ucp_pm_compose.php where possible.
  [ticket/10780] Replace colons in phpBB/adm/style/acp_ext_details.html.
  [ticket/10780] Replace colon usage in adm template output with {L_COLON}
  [ticket/10780] Replace colon usage in template output with {L_COLON}
  [ticket/11181] Bump PHP requirement to 5.3.3 (from 5.3.2) [develop-olympus]
  [ticket/11181] Bump PHP requirement to 5.3.3 (from 5.3.2)
  [ticket/10172] Show prosilver birthday list even if there are no birthdays.
  ...

Conflicts:
	phpBB/common.php
	phpBB/download/file.php
	phpBB/includes/db/dbal.php
	phpBB/includes/db/firebird.php
	phpBB/includes/db/mssql.php
	phpBB/includes/db/mssql_odbc.php
	phpBB/includes/db/mssqlnative.php
	phpBB/includes/db/mysql.php
	phpBB/includes/db/mysqli.php
	phpBB/includes/db/oracle.php
	phpBB/includes/db/postgres.php
	phpBB/includes/db/sqlite.php
	phpBB/includes/extension/manager.php
	phpBB/install/database_update.php

tests/test_framework/phpbb_test_case_helpers.php

@@ -78,7 +78,7 @@ class phpbb_test_case_helpers
 			include($test_config);
 
 			$config = array_merge($config, array(
-				'dbms'		=> $dbms,
+				'dbms'		=> 'phpbb_db_driver_' . $dbms,
 				'dbhost'	=> $dbhost,
 				'dbport'	=> $dbport,
 				'dbname'	=> $dbname,
@@ -115,4 +115,112 @@ class phpbb_test_case_helpers
 
 		return $config;
 	}
+
+	/**
+	* Recursive directory copying function
+	*
+	* @param string $source
+	* @param string $dest
+	* @return array list of files copied
+	*/
+	public function copy_dir($source, $dest)
+	{
+		$source = (substr($source, -1) == '/') ? $source : $source . '/';
+		$dest = (substr($dest, -1) == '/') ? $dest : $dest . '/';
+
+		$copied_files = array();
+
+		if (!is_dir($dest))
+		{
+			$this->makedirs($dest);
+		}
+
+		$files = scandir($source);
+		foreach ($files as $file)
+		{
+			if ($file == '.' || $file == '..')
+			{
+				continue;
+			}
+
+			if (is_dir($source . $file))
+			{
+				$created_dir = false;
+				if (!is_dir($dest . $file))
+				{
+					$created_dir = true;
+					$this->makedirs($dest . $file);
+				}
+
+				$copied_files = array_merge($copied_files, self::copy_dir($source . $file, $dest . $file));
+
+				if ($created_dir)
+				{
+					$copied_files[] = $dest . $file;
+				}
+			}
+			else
+			{
+				if (!file_exists($dest . $file))
+				{
+					copy($source . $file, $dest . $file);
+
+					$copied_files[] = $dest . $file;
+				}
+			}
+		}
+
+		return $copied_files;
+	}
+
+	/**
+	* Remove files/directories that are listed in an array
+	* Designed for use with $this->copy_dir()
+	*
+	* @param array $file_list
+	*/
+	public function remove_files($file_list)
+	{
+		foreach ($file_list as $file)
+		{
+			if (is_dir($file))
+			{
+				rmdir($file);
+			}
+			else
+			{
+				unlink($file);
+			}
+		}
+	}
+
+	/**
+	* Empty directory (remove any subdirectories/files below)
+	*
+	* @param array $file_list
+	*/
+	public function empty_dir($path)
+	{
+		$path = (substr($path, -1) == '/') ? $path : $path . '/';
+
+		$files = scandir($path);
+		foreach ($files as $file)
+		{
+			if ($file == '.' || $file == '..')
+			{
+				continue;
+			}
+
+			if (is_dir($path . $file))
+			{
+				$this->empty_dir($path . $file);
+
+				rmdir($path . $file);
+			}
+			else
+			{
+				unlink($path . $file);
+			}
+		}
+	}
 }