Add git meta to debug index

controllers/debug.py

+from misc_util import META_GET
+
 def index():
-    return dict()
+    return dict(meta=META_GET())

modules/misc_util.py

+from gluon import *
+
+def META_GET():
+    return(current.db(current.db.Meta).select().first())

views/debug/index.html

@@ -19,6 +19,11 @@
         </td>
     </tr>
 </table>
+<br>
+This is commit <b>{{=meta.git_commit[:10] if len(meta.git_commit) > 10 else meta.git_commit}}</b> from <b>{{=meta.git_date}}</b> - show on
+<a href="https://git.noc.ruhr-uni-bochum.de/studienprojekt-ss20/lynchburg-server/-/commit/{{=meta.git_commit}}">GitLab</a><br>
+Database from: {{=meta.creation}}
+
 <script type="text/javascript">
     $('form').submit(function(){