API User Verify/Reset functions

[Michael_Summitt]

Add functions so that an admin can verify that an API user is not a UI user, and the password will never expire, and so that an admin can "reset" an API user who has accidentally become a UI user, so that the password will never expire.  Alternately, prevent attempts to log in as a user who is an API user.

[lukasz]

We're thinking of including this kind of capability as part of the API's for user management. This is likely to be something we look at in the next 18 or so months.