Adds migration to update all only-office.

migrations/update-oo.sh

+#!/bin/bash -eux
+
+# Verify they are all in sync with git, if not, print the domain name.
+for oo  in `ls -d ./oo-*`;do
+  cd $oo
+  if ! git diff --exit-code --quiet; then
+    echo $oo
+  fi
+  cd ..
+done
+
+# Update all oo
+for oo  in `ls -d ./oo-*`;do
+  cd $oo
+  libre update
+  cd ..
+done