OsmoPCU: fix Gb documentation front page

Add date and commit refs.
Add relevant standards.
Fix email typo.
diff --git a/doc/manuals/osmopcu-gb-docinfo.xml b/doc/manuals/osmopcu-gb-docinfo.xml
index 280c6f7..23ec3d1 100644
--- a/doc/manuals/osmopcu-gb-docinfo.xml
+++ b/doc/manuals/osmopcu-gb-docinfo.xml
@@ -4,8 +4,8 @@
     <date>February 2016</date>
     <authorinitials>HW, MS</authorinitials>
     <revremark>
-      Initial version, reflecting OsmoPCU master branch as on FIXME
-      (commit FIXME).
+      Initial version, reflecting OsmoPCU master branch as on 2016-Mar-02
+      (commit 22d7e75e1f160e5337140d9f3dcb2679b621b646).
     </revremark>
   </revision>
 </revhistory>