login, too many strings in the API

Ok, we've hita milestone, all be it a small and early one. The logon command works and Login events are created (as JSecs).

I think its time for me to do another alpha release. Then I want to change everything (as usual).

There's too many string arguments in the Ark API. Its not fun. So I want to introduce two new classes, RecordId and TimeStamp. Just to add typing to the arguments and a bit of clairity to the code.

Bill