better NSS error handling - reduce memory leaks
    
    When we get an error from NSS_Initialize or NSS_Shutdown, try to log
    some more informative error messages.  Errors from NSS_Initialize are
    "hard" errors - we cannot/should not proceed.  Errors from
    NSS_Shutdown are "soft" errors - we leak NSS resources in a few of the
    CGI programs and NSS_Shutdown will complain about that, but it is
    really ok.  Found and fixed a couple of memory leaks but there are
    many, many more.