Move loading of js_config to templatelayout

Also check for installed flag because this isn't available before setup

core/templates/layout.base.php

@@ -7,7 +7,6 @@
 		<?php foreach ($_['cssfiles'] as $cssfile): ?>
 			<link rel="stylesheet" href="<?php echo $cssfile; ?>" type="text/css" media="screen" />
 		<?php endforeach; ?>
-		<script type="text/javascript" src="<?php echo OC_Helper::linkToRoute('js_config');?>"></script>
 		<?php foreach ($_['jsfiles'] as $jsfile): ?>
 			<script type="text/javascript" src="<?php echo $jsfile; ?>"></script>
 		<?php endforeach; ?>

core/templates/layout.guest.php

@@ -8,7 +8,6 @@
 		<?php foreach($_['cssfiles'] as $cssfile): ?>
 			<link rel="stylesheet" href="<?php echo $cssfile; ?>" type="text/css" media="screen" />
 		<?php endforeach; ?>
-		<script type="text/javascript" src="<?php echo OC_Helper::linkToRoute('js_config');?>"></script>
 		<?php foreach($_['jsfiles'] as $jsfile): ?>
 			<script type="text/javascript" src="<?php echo $jsfile; ?>"></script>
 		<?php endforeach; ?>

core/templates/layout.user.php

@@ -8,7 +8,6 @@
 		<?php foreach($_['cssfiles'] as $cssfile): ?>
 			<link rel="stylesheet" href="<?php echo $cssfile; ?>" type="text/css" media="screen" />
 		<?php endforeach; ?>
-		<script type="text/javascript" src="<?php echo OC_Helper::linkToRoute('js_config');?>"></script>
 		<?php foreach($_['jsfiles'] as $jsfile): ?>
 			<script type="text/javascript" src="<?php echo $jsfile; ?>"></script>
 		<?php endforeach; ?>

lib/templatelayout.php

@@ -36,6 +36,9 @@ class OC_TemplateLayout extends OC_Template {
 		// Add the js files
 		$jsfiles = self::findJavascriptFiles(OC_Util::$scripts);
 		$this->assign('jsfiles', array(), false);
+		if (OC_Config::getValue('installed', false)) {
+			$this->append( 'jsfiles', OC_Helper::linkToRoute('js_config'));
+		}
 		if (!empty(OC_Util::$core_scripts)) {
 			$this->append( 'jsfiles', OC_Helper::linkToRemoteBase('core.js', false));
 		}