oops: Repair pwreset logins
Don't recreate session on login
client: Don't show all tickets if already logged in

If a client is already logged into the system and follows a second ticket
link, show the ticket instead of the list of tickets.
Merge pull request #664 from greezybacon/issue/pwreset-again

Issue/pwreset again

Reviewed-By: Peter Rotich <peter@osticket.com>