fixed typo and added instance creation to modpol.lua

modpol/modpol.lua

@@ -77,9 +77,10 @@ dofile (topdir .. "/api.lua")
 -- Final checks
 
 -- create instance if not present
--- if not modpol.get_org_id_by_name('instance') then
---    modpol.add_org("instance", modpol.list_users())
--- end
+if not modpol.orgs.get_org('instance') then
+    modpol.orgs.init_instance()
+    modpol.instance = modpol.orgs.get_org('instance')
+end
 
 modpol.ocutil.log ("modpol loaded")