Log Message:
Update to 0.23
Add LICENSE
Add missing BUILD_DEPENDS for regress test

Upstream changes:
0.23 2013/11/03

  * Added REAL_SERVERS check to t/proxy-with-https.t
  - Thanks to Gregor Herrmann, Debian Perl Group, for the patch

0.22 2013/09/12

  * Added repository cpan metadata to Makefile.PL
  - Thanks to David Steinbrunner for the patch

0.21 2013/08/29

  * Updated Changes file to meet CPAN::Changes::Spec
    * FIxed unparseable date for version 0.02

0.20 2013/07/18

  * Updates Changes file to meet CPAN::Changes::Spec
    * Changed and standardized date formats
    * Changed name from CHANGES to Changes
    * Added author/release test to check this going forward

0.19 2013/07/17

  * Added ssl_options support
  * Increased Net::HTTPS::NB requirement to 0.13
  - Thanks to Heikki Vatiainen for the patch

0.18 2013/05/27

  * Fixed typo in POD
  - Added THANKS for Florian (fschlich)

0.17 2013/04/20

  * Added local_addr and local_port support
  * Standardised test names
  * Added THANKS for github user c00ler-

0.16 2013/04/04

  * Fixed CPAN Testers bug in bad-hosts.t

0.15 2013/04/04

  * Two bug fixes provided by Josef Toman:
    * Fixed header handling to use header_field_names()
    * Replaced _make_url_absolute with URI::new_abs()

0.14 2013/04/01

  * More diagnostics in bad-hosts.t on failure

0.13 2013/03/29

  * Fixed t/real-servers.t to work whether or not Net::HTTPS::NB is available

0.12 2013/03/29

  * New logic for making https requests through a proxy
  * Made tests run ok in parallel by using different ports per test
  * Set explicit SSL_verify_mode in real-servers.t
  * Minor update to code comment about is_proxy mode

0.11 2012/11/13

  * Use high ports to prevent test failure when 8080 is already used
  * Travis config

0.10 2012/03/08

  * added support for https requests - thanks Naveed Massjouni