070301 cs  -       New module opc.
070424 cs  -       Opc XML/DA server and client.
070601 cs  -       Problems with national characters fixed.
070601 cs  -       Problems with memory leakage fixed.
071203 cs  -       Bugfix in Opc Server, subscription on string variable could cause segfault.
081125 cs  -       Bugfix in opc_provider argument check, server identity was not optional.
101220 cs  -       Opc_server fix, suppressed error return from not mounted mountobjects.
