Log Message:
p5-Net-Telnet-Cisco: update to 1.11.

1.11  Mon Sep 11 08:00:00 EDT 2017
    - Updated to new module layout (lib/).
    - Remove .cvsignore
    - Added simple t\*.t tests.
	- Makefile.PL:  updated version dependencies
    - Cisco.pm:
        Added 'use warnings;'.
        Added warnings() to fix RT 48904.
        Added fhopen() to fix RT 19285.
        Added POD for last_cmd.
        Updated new() to fix RT 19260.
        Updated _normalize() to fix RT 7796, 39882, 102753, 118170.
        Changed check for '' instead of not defined for $en_level to catch
          enable() success or failure.
        Changed @out to $out[] in cmd() to fix RT 2592.
        Changed prompt_append() to _prompt_append() [private].
        Changed re_sans_delims() to _re_sans_delims() [private].
    - test.pl: make Term::ReadKey conditional.