Show server configuration in settings page

app/Template/config/about.php

@@ -7,10 +7,6 @@
             <?= t('Official website:') ?>
             <a href="http://kanboard.net/" target="_blank" rel="noreferer">http://kanboard.net/</a>
         </li>
-        <li>
-            <?= t('Application version:') ?>
-            <strong><?= APP_VERSION ?></strong>
-        </li>
         <li>
             <?= t('Author:') ?>
             <strong>Frédéric Guillot</strong> (<a href="https://github.com/fguillot/kanboard/blob/master/CONTRIBUTORS.md" target="_blank"><?= t('contributors') ?></a>)
@@ -23,15 +19,47 @@
 </div>
 
 <div class="page-header">
-    <h2><?= t('Database') ?></h2>
+    <h2><?= t('Configuration') ?></h2>
 </div>
 <div class="listing">
     <ul>
         <li>
-            <?= t('Database driver:') ?>
-            <strong><?= $this->text->e(DB_DRIVER) ?></strong>
+            <?= t('Application version:') ?>
+            <strong><?= APP_VERSION ?></strong>
         </li>
-        <?php if (DB_DRIVER === 'sqlite'): ?>
+        <li>
+            <?= t('PHP version:') ?>
+            <strong><?= PHP_VERSION ?></strong>
+        </li>
+        <li>
+            <?= t('PHP SAPI:') ?>
+            <strong><?= PHP_SAPI ?></strong>
+        </li>
+        <li>
+            <?= t('OS version:') ?>
+            <strong><?= php_uname('s').' '.php_uname('r') ?></strong>
+        </li>
+        <li>
+            <?= t('Database driver:') ?>
+            <strong><?= DB_DRIVER ?></strong>
+        </li>
+        <li>
+            <?= t('Database version:') ?>
+            <strong><?= $this->text->e($db_version) ?></strong>
+        </li>
+        <li>
+            <?= t('Browser:') ?>
+            <strong><?= $this->text->e($user_agent) ?></strong>
+        </li>
+    </ul>
+</div>
+
+<?php if (DB_DRIVER === 'sqlite'): ?>
+    <div class="page-header">
+        <h2><?= t('Database') ?></h2>
+    </div>
+    <div class="listing">
+        <ul>
             <li>
                 <?= t('Database size:') ?>
                 <strong><?= $this->text->bytes($db_size) ?></strong>
@@ -44,9 +72,9 @@
                 <?= $this->url->link(t('Optimize the database'), 'config', 'optimizeDb', array(), true) ?>&nbsp;
                 <?= t('(VACUUM command)') ?>
             </li>
-        <?php endif ?>
-    </ul>
-</div>
+        </ul>
+    </div>
+<?php endif ?>
 
 <?= $this->render('config/keyboard_shortcuts') ?>