Log Message:
p5-GitLab-API-v4: update to version 0.19

0.19 2019-05-17T20:40:22Z

 - Live tests now run against GitLab CE 11.10.4 (was 11.2.3).
 - Add GitLab::API::v4::WWWClient.
 - Add GitLab::API::v4::Mock for writing unit tests.
 - Switch to the GNU General Public License version 3.

0.18 2019-04-01T04:35:02Z

 - Add SUPPORT section to the docs.
 - The archive method no longer tries to decode the response.
 - Add the commit_refs method.
 - Add the trigger_pipeline method.
 - Document some create_pipeline method parameters.

0.17 2019-02-20T22:47:58Z

 - Require perl 5.10.1 as I give up trying to support 5.8 due to other modules
   requiring 5.10 and strictures/multidimensional issues.
 - Simplify VERSION declarations.

0.16 2019-02-18T06:21:15Z

 - Migrate build tooling from Dist::Zilla to Minilla.

0.15 2019-01-09

 - BREAKING CHANGE: gitlab-api-v4 now takes parameters in the form of
   param:value rather than --param=value.  This is to avoid foot-gun
   ambiguities when options have the same names as parameters (such as --url).
 - Add --pretty and --canonical options to gitlab-api-v4.