scripts, tests: explicitly set confdir in the rest of server code
    
    Commit 1e6a204b4372bbbfb722a00370a5ce4e34406b9f added explicit confdir
    setting to api.bootstrap() calls of a randomly selected portion of
    server-side scripts and tests. This commit adds it to the rest of
    server-side code for consistency.
    
    https://fedorahosted.org/freeipa/ticket/6389
    
    Reviewed-By: Stanislav Laznicka <slaznick@redhat.com>