gnu: openssl@1.1.0: Update to 1.1.0f.

* gnu/packages/tls.scm (openssl-next): Update to 1.1.0f.

gnu: libtasn1: Fix CVE-2017-6891.

* gnu/packages/patches/libtasn1-CVE-2017-6891.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/tls.scm (libtasn1)[replacement]: New field.
(libtasn1/fixed): New variable.

gnu: asn1c: Update to 0.9.28.

* gnu/packages/tls.scm (asn1c): Update to 0.9.28.

gnu: certbot, python-acme: Update to 0.14.1.

* gnu/packages/tls.scm (certbot, python-acme, python2-acme): Update to 0.14.1.

gnu: certbot, python-acme: Update to 0.14.0.

* gnu/packages/tls.scm (certbot, python-acme, python2-acme): Update to 0.14.0.

gnu: libressl: Update to 2.5.4.

* gnu/packages/tls.scm (libressl): Update to 2.5.4.
[home-page]: Use https.

gnu: Avoid circular dependencies by Perl license.

* guix/licenses.scm (perl-license): New variable.
* gnu/packages/bioinformatics.scm: Change (package-license perl) to perl-license.
* gnu/packages/compression.scm: Same.
* gnu/packages/databases.scm: Same.
* gnu/packages/gd.scm: Same.
* gnu/packages/language.scm: Same.
* gnu/packages/libevent.scm: Same.
* gnu/packages/mail.scm: Same.
* gnu/packages/messaging.scm: Same.
* gnu/packages/ncurses.scm: Same.
* gnu/packages/networking.scm: Same.
* gnu/packages/photo.scm: Same.
* gnu/packages/tcl.scm: Same.
* gnu/packages/tex.scm: Same.
* gnu/packages/tls.scm: Same.
* gnu/packages/web.scm: Same.
* gnu/packages/wm.scm: Same.
* gnu/packages/xml.scm: Same.
* gnu/packages/xorg.scm: Same.
* gnu/packages/zip.scm: Same.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

Merge branch 'master' into staging

gnu: libressl: Do not use 'getentropy'.

* gnu/packages/tls.scm (libressl)[arguments]: New field.

Merge branch 'master' into staging

gnu: certbot: Remove unused dependency.

This dependency was removed in certbot@0.10.0:

https://github.com/certbot/certbot/commit/d54cb76432a2eff43cc9cc3c1cc4d9136eac2221

* gnu/packages/tls.scm (certbot)[propagated-inputs]: Remove
python2-pythondialog.

gnu: python-acme: Remove unused dependencies.

Removed in python-acme@0.10.0 and 0.4.1, respectively:

https://github.com/certbot/certbot/commit/edbb3a73c6085219bef0cbf008bd1c82088bfcf6
https://github.com/certbot/certbot/commit/df383ee6e408f3be4bc3beb59aa33abc8e90f268

* gnu/packages/tls.scm (python-acme, python2-acme)[propagated-inputs]:
Remove python-ndg-httpsclient and python-werkzeug.

gnu: certbot, python-acme: Build documentation in separate phase.

* gnu/packages/tls.scm (python-acme)[arguments]<:phases>: Add
'build-documentation' phase. Rename 'docs' phase to 'install-documentation'.
(certbot)[arguments]<:phases>: Adjust accordingly.

gnu: libressl: Update to 2.5.3.

* gnu/packages/tls.scm (libressl): Update to 2.5.3.

gnu: certbot: Share python-acme's arguments.

* gnu/packages/tls.scm (certbot)[arguments]: Use substitute-keyword-arguments to
inherit from python-acme.

gnu: certbot, python-acme: Update to 0.13.0.

* gnu/packages/tls.scm (certbot, python-acme, python2-acme): Update to 0.13.0.
[arguments]: Add 'patch-dependency' phase.

Merge branch 'core-updates'

Merge branch 'master' into core-updates

Most conflicts are from 6fd52309b8f52c9bb59fccffac53e029ce94b698.

gnu: mbedtls-apache: Update to 2.4.2 [fixes CVE-2017-2784, SLOTH and others].

See 'ChangeLog' in the source code distribution for more information about
security-related bug fixes.

* gnu/packages/tls.scm (mbedtls-apache): Update to 2.4.2.

gnu: Use HTTPS for almost all gnu.org HOME-PAGEs.

All HTTP gnu.org (and supported subdomain) HOME-PAGEs changed to HTTPS.