doc: Use module name for tab and window title

modules/doc/application/controllers/ModuleController.php

@@ -90,11 +90,12 @@ class ModuleController extends DocController
     {
         $module = $this->params->getRequired('moduleName');
         $this->assertModuleInstalled($module);
-        $this->view->moduleName = $module;
+        $moduleManager = Icinga::app()->getModuleManager();
+        $name = $moduleManager->getModule($module)->getTitle();
         try {
             $this->renderToc(
                 $this->getPath($module, Icinga::app()->getModuleManager()->getModuleDir($module, '/doc')),
-                $module,
+                $name,
                 'doc/module/chapter',
                 array('moduleName' => $module)
             );

modules/doc/library/Doc/DocController.php

@@ -71,10 +71,10 @@ class DocController extends Controller
             ->setUrl($url)
             ->setUrlParams($urlParams);
         $name = ucfirst($name);
-        $this->view->title = sprintf($this->translate('%s Documentation'), $name);
+        $title = sprintf($this->translate('%s Documentation'), $name);
         $this->getTabs()->add('toc', array(
             'active'    => true,
-            'title'     => $name,
+            'title'     => $title,
             'url'       => Url::fromRequest()
         ));
         $this->render('toc', null, true);