BREAKING FEATURE: Remove general in config

General attribute has been removed from system config.
Now subattributes (e.g. environment, salt, title, etc.) are directly accessible.

YOU HAVE TO FIX YOUR ./data/config.php file!

- Remove the general array
- Values inside this array must be kept
- To see what it must look like, please have a look to ./data/config.default.php
  (but keep your values!!).

See https://github.com/FreshRSS/FreshRSS/issues/730

app/Controllers/javascriptController.php

@@ -28,7 +28,7 @@ class FreshRSS_javascript_Controller extends Minz_ActionController {
 		$user = isset($_GET['user']) ? $_GET['user'] : '';
 		if (ctype_alnum($user)) {
 			try {
-				$salt = FreshRSS_Context::$system_conf->general['salt'];
+				$salt = FreshRSS_Context::$system_conf->salt;
 				$conf = new FreshRSS_Configuration($user);
 				$s = $conf->passwordHash;
 				if (strlen($s) >= 60) {