Corrects problems w/authetication error reporting

    1)	Error not reported when authentication fails (LP 1321059)
    2)	Authentication error reporting should be moved out of CLI (US
    1036)

    In addition, the template authentication configuration file refers to
    the wrong script for enabling authentication.  (LP 1327302)

    Analysis and Design:
    When support for Zookeeper was added to MXOSRVR, authentication was not
    active.  The code to retrieve and handle errors was moved later in the
    connection logic.  Unfortunately, by the time it was invoked, the error
    was no longer available, and a generic error was reported by an
    exception handler.  The check is move back to its previous location.

    Previously the CLI would load authentication error codes and text into
    the diags area, and then MXOSRVR would extract it.  Now, MXOSRVR simply
    generates its own error, although currently it looks a lot like the old
    error (minus the CLI reference).

    After the authentication configuration template was delivered, the name
    of the script to enable authentication was chosen.  The template was not
    updated due to time constraints.

    Externals:
    Previously the error messages from authentication were of the form:

    *** ERROR[8837] CLI Authentication : User: external-username : invalid
    username or password

    The new format is:

    *** ERROR[8837] Invalid username or password.  User: external-username

    The format of this message will likely change, but for now the original
    CLI range error is retained.

Change-Id: I8ab58404941aaf50319883071bb4142cbaafb557
Merge "Corrects problems w/authetication error reporting"