[Opendnssec-develop] HSM reopen

[Rickard Bellgrim]

>> I think we could implement a more simpler NO-OP in libhsm so that we
>> do not need to count keys. Just to see that the sessions still work.
>>
>
> That would be good. Shall I add this code to trunk now, or wait until libhsm
> has this call?

I have added hsm_check_context() in r5499. It will perform checks on
all open sessions in the context:
* Get session info and check if we still are logged in.
* Try open and close a session with the same slotID.

// Rickard