Add wrapper scripts to easily get admin.cfg (#331)

* add small wrapper scripts to honor admin.cfg at /tmp/kopano
* add script to create stores (workaround to satisfy tests)
* add output of orphaned store list to startup test

core/bin/kopano-create-missing-stores.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+for kuser in $(kopano-storeadm -O | grep -A999999999 "Entities without stores:" | tail -n +4 | awk '{print $2}'); do
+	kopano-storeadm -n "$kuser" -C
+done