* Fix the incorrect test for an empty 'pki_token_name'
    * Remove the 'pki_client_pkcs12_path' parameter from 'pkideployment.cfg', and
      ALWAYS store the PKI client Admin Cert PKCS #12 file under the NSS "server"
      security database directory
    * Simplify the code that calculates the name of 'pki_client_admin_cert' and
      the path of 'pki_client_admin_cert_p12'
    * Remove the 'pki_backup_file' parameter from 'pkideployment.cfg', and
      ALWAYS store the PKI Backup Keys PKCS #12 file under the NSS "server"
      security database directory
    * Simplify the code that calculates the path of 'pki_backup_keys_p12'
      (formerly called 'pki_backup_file')
    * Fix the 'pkideployment.cfg' file (and associated code) such that:
      * names ending with 'path' are ONLY used to specify complete directory
        paths to a filename that always end by specifying that filename
      * names ending with 'dir' are ONLY used to specify directories
      * names ending with 'file' are ONLY used to specify the name of a file
      * names ending with 'name' are ONLY used to specify strings that do not
        refer to either a directory or a file
    * Refactor code to allow the "pkideployment.cfg" file utilized by pkispawn
      to be stored as soon as possible in the "infrastructure_layout" scriptlet
      (rather than the "instance_layout", "subsystem_layout", and
       "finalization" scriptlets)
    * Change the 'directory', 'file', and 'symlink' classes' delete() method to
      issue a warning for a non-existent directory, file, or symlink respectively
      rather than terminating the process with an error
    * Fix the [PKI_OPEN_AJP_PORT_COMMENT_SLOT], [PKI_CLOSE_AJP_PORT_COMMENT_SLOT],
      [PKI_OPEN_ENABLE_PROXY_COMMENT_SLOT], and
      [PKI_CLOSE_ENABLE_PROXY_COMMENT_SLOT] to depend upon the boolean value of
      'pki_enable_proxy'