config.master.php file update

- remove not used code
- reorder defines for possible clean up targets
- TARGET and HOST_NAME are set early
HOST NAME is set right at the top
TARGET is set after site configs is read
- add more $_ENV reads
DEFAULT_ACL_LEVEL
LOCALE (encoding is read from locale which should be in the format of nn_CT.ENCODING, eg en_US.UTF-8), falls back to UTF-8
ADMIN.STYLESHEET
ADMIN.JAVASCRIPT

www/lib/CoreLibs/ACL/Login.php

@@ -423,14 +423,9 @@ class Login
 
 		// LOGOUT TARGET
 		if (!isset($options['logout_target'])) {
-			if (defined('LOGOUT_TARGET')) {
-				trigger_error(
-					'loginMainCall: LOGOUT_TARGET should not be used',
-					E_USER_DEPRECATED
-				);
-				$options['logout_target'] = LOGOUT_TARGET;
-				$this->logout_target = $options['logout_target'];
-			}
+			// defaults to ''
+			$options['logout_target'] = '';
+			$this->logout_target = $options['logout_target'];
 		}
 
 		// *** PASSWORD SETTINGS