Update to 1.36

Upstream changes:
1.36  2019-01-14
        - readline-8.0 support
            new function
                rl_empty_keymap
                rl_set_keymap_name
                rl_check_signals
            new variable
                history_quoting_state
            rl_function_of_keyseq uses rl_function_of_keyseq_len to
            support an arbitrary key sequence that may include NULs.
        - new() checks the number of arguments.
        - make 'use Term::ReadLine::Gnu' fail if $TERM is not set or
          on a dumb terminal.  'use Term::ReadLine' uses
          Term::ReadLine::Stub instead. [rt.cpan.org #123398]
        - Makefile.PL: checks the tinfo library for Debian.
        - add t/01test_use.t and t/02test_use.t.
        - comment out a hack for the CPAN Test on OpenBSD added on
          TRG 1.22.
        - t/utf8_binary.t, t/utf8_text.t: skipped on Perl 5.8.

(wen)