diff --git a/application/controllers/ListController.php b/application/controllers/ListController.php
index 972573dc1..ca7265f0e 100644
--- a/application/controllers/ListController.php
+++ b/application/controllers/ListController.php
@@ -44,14 +44,12 @@ class ListController extends Controller
         }
 
         $this->addTitleTab('application log');
-        $pattern = '/^(?<datetime>[0-9]{4}(-[0-9]{2}){2}'                 // date
-                 . 'T[0-9]{2}(:[0-9]{2}){2}([\\+\\-][0-9]{2}:[0-9]{2})?)' // time
-                 . ' - (?<loglevel>[A-Za-z]+)'                            // loglevel
-                 . ' - (?<message>.*)$/';
 
         $resource = new FileReader(new ConfigObject(array(
             'filename'  => Config::app()->get('logging', 'file'),
-            'fields'    => $pattern
+            'fields'    => '/(?<!.)(?<datetime>[0-9]{4}(?:-[0-9]{2}){2}'    // date
+                . 'T[0-9]{2}(?::[0-9]{2}){2}(?:[\+\-][0-9]{2}:[0-9]{2})?)'  // time
+                . ' - (?<loglevel>[A-Za-z]+) - (?<message>.*)(?!.)/msS'     // loglevel, message
         )));
         $this->view->logData = $resource->select()->order('DESC')->paginate();
 
diff --git a/application/forms/Config/AuthenticationBackendReorderForm.php b/application/forms/Config/AuthenticationBackendReorderForm.php
index e4ac90c12..34f20d851 100644
--- a/application/forms/Config/AuthenticationBackendReorderForm.php
+++ b/application/forms/Config/AuthenticationBackendReorderForm.php
@@ -51,7 +51,7 @@ class AuthenticationBackendReorderForm extends ConfigForm
 
             try {
                 if ($configForm->move($backendName, $position)->save()) {
-                    Notification::success($this->translate('Authentication order updated!'));
+                    Notification::success($this->translate('Authentication order updated'));
                 } else {
                     return false;
                 }
diff --git a/application/locale/it_IT/LC_MESSAGES/icinga.po b/application/locale/it_IT/LC_MESSAGES/icinga.po
index 2b867ca14..73d616bfa 100644
--- a/application/locale/it_IT/LC_MESSAGES/icinga.po
+++ b/application/locale/it_IT/LC_MESSAGES/icinga.po
@@ -199,8 +199,8 @@ msgid "Authentication backend name missing"
 msgstr "Nome del Backend di autenticazione non specificato"
 
 #: /usr/share/icingaweb2/application/forms/Config/AuthenticationBackendReorderForm.php:54
-msgid "Authentication order updated!"
-msgstr "Ordine di autenticazione aggiornato!"
+msgid "Authentication order updated"
+msgstr "Ordine di autenticazione aggiornato"
 
 #: /usr/share/icingaweb2/application/forms/AutoRefreshForm.php:44
 msgid "Auto refresh successfully disabled"
diff --git a/application/locale/pt_BR/LC_MESSAGES/icinga.po b/application/locale/pt_BR/LC_MESSAGES/icinga.po
index 01dc18a9f..16aba2378 100644
--- a/application/locale/pt_BR/LC_MESSAGES/icinga.po
+++ b/application/locale/pt_BR/LC_MESSAGES/icinga.po
@@ -130,8 +130,8 @@ msgid "Authentication backend name missing"
 msgstr "Falta o nome do backend de autenticação"
 
 #: /usr/local/icingaweb/application/forms/Config/AuthenticationBackendReorderForm.php:55
-msgid "Authentication order updated!"
-msgstr "Ordem da autenticação atualizada!"
+msgid "Authentication order updated"
+msgstr "Ordem da autenticação atualizada"
 
 #: /usr/local/icingaweb/application/forms/Config/AuthenticationBackendConfigForm.php:307
 msgid "Autologin"
diff --git a/application/views/scripts/list/applicationlog.phtml b/application/views/scripts/list/applicationlog.phtml
index cc412eb9c..00102e855 100644
--- a/application/views/scripts/list/applicationlog.phtml
+++ b/application/views/scripts/list/applicationlog.phtml
@@ -19,7 +19,7 @@
                         <?= $this->escape($value->loglevel) ?>
                     </td>
                     <td>
-                        <?= $this->escape($value->message) ?>
+                        <?= nl2br($this->escape($value->message), false) ?>
                     </td>
                 </tr>
             <?php endforeach; ?>
diff --git a/library/Icinga/Application/Logger/Writer/SyslogWriter.php b/library/Icinga/Application/Logger/Writer/SyslogWriter.php
index e18c5eeec..4494c9971 100644
--- a/library/Icinga/Application/Logger/Writer/SyslogWriter.php
+++ b/library/Icinga/Application/Logger/Writer/SyslogWriter.php
@@ -67,6 +67,6 @@ class SyslogWriter extends LogWriter
     public function log($level, $message)
     {
         openlog($this->ident, LOG_PID, $this->facility);
-        syslog(static::$severityMap[$level], $message);
+        syslog(static::$severityMap[$level], str_replace("\n", '    ', $message));
     }
 }
diff --git a/library/Icinga/Application/Modules/Manager.php b/library/Icinga/Application/Modules/Manager.php
index 90e55f0b4..e3e5ec6f2 100644
--- a/library/Icinga/Application/Modules/Manager.php
+++ b/library/Icinga/Application/Modules/Manager.php
@@ -101,6 +101,16 @@ class Manager
      */
     private function detectEnabledModules()
     {
+        if (! file_exists($parent = dirname($this->enableDir))) {
+            return;
+        }
+        if (! is_readable($parent)) {
+            throw new NotReadableError(
+                'Cannot read enabled modules. Module directory\'s parent directory "%s" is not readable',
+                $parent
+            );
+        }
+
         if (! file_exists($this->enableDir)) {
             return;
         }
diff --git a/library/Icinga/Protocol/File/FileReader.php b/library/Icinga/Protocol/File/FileReader.php
index aaef31840..2c43d390a 100644
--- a/library/Icinga/Protocol/File/FileReader.php
+++ b/library/Icinga/Protocol/File/FileReader.php
@@ -26,6 +26,13 @@ class FileReader implements Selectable, Countable
      */
     protected $filename;
 
+    /**
+     * Cache for static::count()
+     *
+     * @var int
+     */
+    protected $count = null;
+
     /**
      * Create a new reader
      *
@@ -51,7 +58,7 @@ class FileReader implements Selectable, Countable
      */
     public function iterate()
     {
-        return new FileIterator($this->filename, $this->fields);
+        return new LogFileIterator($this->filename, $this->fields);
     }
 
     /**
@@ -71,7 +78,10 @@ class FileReader implements Selectable, Countable
      */
     public function count()
     {
-        return iterator_count($this->iterate());
+        if ($this->count === null) {
+            $this->count = iterator_count($this->iterate());
+        }
+        return $this->count;
     }
 
     /**
diff --git a/library/Icinga/Protocol/File/LogFileIterator.php b/library/Icinga/Protocol/File/LogFileIterator.php
new file mode 100644
index 000000000..4b587b58e
--- /dev/null
+++ b/library/Icinga/Protocol/File/LogFileIterator.php
@@ -0,0 +1,154 @@
+<?php
+/* Icinga Web 2 | (c) 2013-2015 Icinga Development Team | GPLv2+ */
+
+namespace Icinga\Protocol\File;
+
+use Icinga\Exception\IcingaException;
+use SplFileObject;
+use Iterator;
+
+/**
+ * Iterate over a log file, yielding the regex fields of the log messages
+ */
+class LogFileIterator implements Iterator
+{
+    /**
+     * Log file
+     *
+     * @var SplFileObject
+     */
+    protected $file;
+
+    /**
+     * A PCRE string with the fields to extract
+     * from the log messages as named subpatterns
+     *
+     * @var string
+     */
+    protected $fields;
+
+    /**
+     * Value for static::current()
+     *
+     * @var string
+     */
+    protected $current;
+
+    /**
+     * Index for static::key()
+     *
+     * @var int
+     */
+    protected $index;
+
+    /**
+     * Value for static::valid()
+     *
+     * @var boolean
+     */
+    protected $valid;
+
+    /**
+     * @var string
+     */
+    protected $next = null;
+
+    /**
+     * @param string $filename      The log file's name
+     * @param string $fields        A PCRE string with the fields to extract
+     *                              from the log messages as named subpatterns
+     */
+    public function __construct($filename, $fields)
+    {
+        $this->file = new SplFileObject($filename);
+        $this->file->setFlags(
+            SplFileObject::DROP_NEW_LINE |
+            SplFileObject::READ_AHEAD
+        );
+        $this->fields = $fields;
+    }
+
+    public function rewind()
+    {
+        $this->file->rewind();
+        $this->index = 0;
+        $this->nextMessage();
+    }
+
+    public function next()
+    {
+        $this->file->next();
+        ++$this->index;
+        $this->nextMessage();
+    }
+
+    /**
+     * @return string
+     */
+    public function current()
+    {
+        return $this->current;
+    }
+
+    /**
+     * @return int
+     */
+    public function key()
+    {
+        return $this->index;
+    }
+
+    /**
+     * @return boolean
+     */
+    public function valid()
+    {
+        return $this->valid;
+    }
+
+    protected function nextMessage()
+    {
+        $message = $this->next === null ? array() : array($this->next);
+        $this->valid = null;
+        while ($this->file->valid()) {
+            if (false === ($res = preg_match(
+                $this->fields, $current = $this->file->current()
+            ))) {
+                throw new IcingaException('Failed at preg_match()');
+            }
+            if (empty($message)) {
+                if ($res === 1) {
+                    $message[] = $current;
+                }
+            } else if ($res === 1) {
+                $this->next = $current;
+                $this->valid = true;
+                break;
+            } else {
+                $message[] = $current;
+            }
+
+            $this->file->next();
+        }
+        if ($this->valid === null) {
+            $this->next = null;
+            $this->valid = ! empty($message);
+        }
+
+        if ($this->valid) {
+            while (! empty($message)) {
+                $matches = array();
+                if (false === ($res = preg_match(
+                    $this->fields, implode(PHP_EOL, $message), $matches
+                ))) {
+                    throw new IcingaException('Failed at preg_match()');
+                }
+                if ($res === 1) {
+                    $this->current = $matches;
+                    return;
+                }
+                array_pop($message);
+            }
+            $this->valid = false;
+        }
+    }
diff --git a/library/Icinga/Web/Session/PhpSession.php b/library/Icinga/Web/Session/PhpSession.php
index f4aa72fa3..7f47763c0 100644
--- a/library/Icinga/Web/Session/PhpSession.php
+++ b/library/Icinga/Web/Session/PhpSession.php
@@ -77,7 +77,7 @@ class PhpSession extends Session
             }
         }
 
-        $sessionSavePath = session_save_path();
+        $sessionSavePath = session_save_path() ?: sys_get_temp_dir();
         if (session_module_name() === 'files' && !is_writable($sessionSavePath)) {
             throw new ConfigurationError("Can't save session, path '$sessionSavePath' is not writable.");
         }
diff --git a/modules/monitoring/application/views/helpers/Customvar.php b/modules/monitoring/application/views/helpers/Customvar.php
index 32391b6ce..bb9f70a7e 100644
--- a/modules/monitoring/application/views/helpers/Customvar.php
+++ b/modules/monitoring/application/views/helpers/Customvar.php
@@ -15,8 +15,12 @@ class Zend_View_Helper_Customvar extends Zend_View_Helper_Abstract
 
     public function customvar($struct)
     {
-        if (is_string($struct) || is_int($struct) || is_float($struct)) {
-            return $this->view->escape((string) $struct);
+        if (is_scalar($struct)) {
+            return $this->view->escape(
+                is_string($struct)
+                    ? $struct
+                    : var_export($struct, true)
+            );
         } elseif (is_array($struct)) {
             return $this->renderArray($struct);
         } elseif (is_object($struct)) {
@@ -38,7 +42,7 @@ class Zend_View_Helper_Customvar extends Zend_View_Helper_Abstract
 
     protected function renderObject($object)
     {
-        if (empty($object)) {
+        if (0 === count((array) $object)) {
             return '{}';
         }
         $out = "{<ul>\n";
diff --git a/modules/monitoring/application/views/scripts/show/components/customvars.phtml b/modules/monitoring/application/views/scripts/show/components/customvars.phtml
index aa2e479e4..50b82dbef 100644
--- a/modules/monitoring/application/views/scripts/show/components/customvars.phtml
+++ b/modules/monitoring/application/views/scripts/show/components/customvars.phtml
@@ -1,3 +1,8 @@
+<tr class="newsection">
+    <td colspan="2">
+        <h4 class="customvar"><?= $this->translate('Custom variables') ?></h4>
+    </td>
+</tr>
 <?php
 
 foreach ($object->customvars as $name => $value) {
diff --git a/modules/monitoring/public/css/module.less b/modules/monitoring/public/css/module.less
index f121bb66f..97d236966 100644
--- a/modules/monitoring/public/css/module.less
+++ b/modules/monitoring/public/css/module.less
@@ -32,7 +32,6 @@ p.pluginoutput {
 }
 
 div.pluginoutput {
-  border-right: solid 5px @colorPetrol;
   overflow: auto;
   color: black;
   margin-bottom: 1em;
@@ -173,15 +172,19 @@ form.instance-features span.description, form.object-features span.description {
   }
 }
 
-table.avp form.object-features div.header h4 {
+table.avp form.object-features div.header h4,
+table.avp h4.customvar {
   margin: 0;
 }
 
-table.avp .customvar ul {
+table.avp .customvar ul,
+table.avp .customvar ul li {
     list-style-type: none;
     margin: 0;
+    margin-top: -0.5em;
+    margin-bottom: -0.5em;
     padding: 0;
-    padding-left: 1.5em;
+    padding-left: 0.5em;
 }
 
 div.selection-info {
diff --git a/test/php/application/forms/Config/Authentication/DbBackendFormTest.php b/test/php/application/forms/Config/Authentication/DbBackendFormTest.php
index 010118544..f574a8292 100644
--- a/test/php/application/forms/Config/Authentication/DbBackendFormTest.php
+++ b/test/php/application/forms/Config/Authentication/DbBackendFormTest.php
@@ -31,7 +31,8 @@ class DbBackendFormTest extends BaseTestCase
             ->shouldReceive('count')
             ->andReturn(2);
 
-        $form = Mockery::mock('Icinga\Forms\Config\Authentication\DbBackendForm[getView]');
+        // Passing array(null) is required to make Mockery call the constructor...
+        $form = Mockery::mock('Icinga\Forms\Config\Authentication\DbBackendForm[getView]', array(null));
         $form->shouldReceive('getView->escape')
             ->with(Mockery::type('string'))
             ->andReturnUsing(function ($s) { return $s; });
@@ -56,7 +57,8 @@ class DbBackendFormTest extends BaseTestCase
             ->shouldReceive('count')
             ->andReturn(0);
 
-        $form = Mockery::mock('Icinga\Forms\Config\Authentication\DbBackendForm[getView]');
+        // Passing array(null) is required to make Mockery call the constructor...
+        $form = Mockery::mock('Icinga\Forms\Config\Authentication\DbBackendForm[getView]', array(null));
         $form->shouldReceive('getView->escape')
             ->with(Mockery::type('string'))
             ->andReturnUsing(function ($s) { return $s; });
diff --git a/test/php/application/forms/Config/Authentication/LdapBackendFormTest.php b/test/php/application/forms/Config/Authentication/LdapBackendFormTest.php
index d933005b7..43b8bc1d2 100644
--- a/test/php/application/forms/Config/Authentication/LdapBackendFormTest.php
+++ b/test/php/application/forms/Config/Authentication/LdapBackendFormTest.php
@@ -31,7 +31,8 @@ class LdapBackendFormTest extends BaseTestCase
         Mockery::mock('overload:Icinga\Authentication\User\LdapUserBackend')
             ->shouldReceive('assertAuthenticationPossible')->andReturnNull();
 
-        $form = Mockery::mock('Icinga\Forms\Config\Authentication\LdapBackendForm[getView]');
+        // Passing array(null) is required to make Mockery call the constructor...
+        $form = Mockery::mock('Icinga\Forms\Config\Authentication\LdapBackendForm[getView]', array(null));
         $form->shouldReceive('getView->escape')
             ->with(Mockery::type('string'))
             ->andReturnUsing(function ($s) { return $s; });
@@ -55,7 +56,8 @@ class LdapBackendFormTest extends BaseTestCase
         Mockery::mock('overload:Icinga\Authentication\User\LdapUserBackend')
             ->shouldReceive('assertAuthenticationPossible')->andThrow(new AuthenticationException);
 
-        $form = Mockery::mock('Icinga\Forms\Config\Authentication\LdapBackendForm[getView]');
+        // Passing array(null) is required to make Mockery call the constructor...
+        $form = Mockery::mock('Icinga\Forms\Config\Authentication\LdapBackendForm[getView]', array(null));
         $form->shouldReceive('getView->escape')
             ->with(Mockery::type('string'))
             ->andReturnUsing(function ($s) { return $s; });
diff --git a/test/php/application/forms/Config/Resource/LdapResourceFormTest.php b/test/php/application/forms/Config/Resource/LdapResourceFormTest.php
index d074f1b3b..f382f8bb8 100644
--- a/test/php/application/forms/Config/Resource/LdapResourceFormTest.php
+++ b/test/php/application/forms/Config/Resource/LdapResourceFormTest.php
@@ -29,7 +29,8 @@ class LdapResourceFormTest extends BaseTestCase
             Mockery::mock()->shouldReceive('testCredentials')->once()->andReturn(true)->getMock()
         );
 
-        $form = Mockery::mock('Icinga\Forms\Config\Resource\LdapResourceForm[getView]');
+        // Passing array(null) is required to make Mockery call the constructor...
+        $form = Mockery::mock('Icinga\Forms\Config\Resource\LdapResourceForm[getView]', array(null));
         $form->shouldReceive('getView->escape')
             ->with(Mockery::type('string'))
             ->andReturnUsing(function ($s) { return $s; });
@@ -51,7 +52,8 @@ class LdapResourceFormTest extends BaseTestCase
             Mockery::mock()->shouldReceive('testCredentials')->once()->andThrow('\Exception')->getMock()
         );
 
-        $form = Mockery::mock('Icinga\Forms\Config\Resource\LdapResourceForm[getView]');
+        // Passing array(null) is required to make Mockery call the constructor...
+        $form = Mockery::mock('Icinga\Forms\Config\Resource\LdapResourceForm[getView]', array(null));
         $form->shouldReceive('getView->escape')
             ->with(Mockery::type('string'))
             ->andReturnUsing(function ($s) { return $s; });