[dovecot/core] 5d31e4: lib-http: Allow http_client_settings.ssl==NULL

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/dovecot/core
  Commit: 5d31e4b38ef03b002e2ab245a7f8a4c0da3dd03d
      https://github.com/dovecot/core/commit/5d31e4b38ef03b002e2ab245a7f8a4c0da3dd03d
  Author: Timo Sirainen <timo.sirainen at dovecot.fi>
  Date:   2016-05-08 (Sun, 08 May 2016)

  Changed paths:
    M src/lib-http/http-client.c

  Log Message:
  -----------
  lib-http: Allow http_client_settings.ssl==NULL