gnu: Add httptunnel.

* gnu/packages/web.scm (httptunnel): New variable.

gnu: libpsl: Update to 0.15.0.

* gnu/packages/web.scm (libpsl): Update to 0.15.0.

gnu: tidy: Use ‘modify-phases’.

* gnu/packages/web.scm (tidy)[arguments]: Use the ‘modify-phases’ syntax.

Merge branch 'core-updates'

Merge branch 'master' into core-updates

gnu: jansson: Update to 2.9.

* gnu/packages/web.scm (jansson): Update to 2.9.
[source]: Remove 'jansson-CVE-2016-4425.patch'.
* gnu/packages/patches/jansson-CVE-2016-4425.patch: Delete file.
* gnu/local.mk (dist_patch_DATA): Remove it.

Merge branch 'master' into core-updates

gnu: Add r-htmltable.

* gnu/packages/web.scm (r-htmltable): New variable.

Merge branch 'master' into core-updates

gnu: python-feedparser: Disable the test suite.

The tests were silently skipped with Python 3.4. With Python 3.5, this caused
the build of python-feedparser to fail.

* gnu/packages/python.scm (python-feedparser, python2-feedparser)[arguments]:
Disable the tests.

Merge branch 'master' into core-updates

gnu: perl-www-curl: Fix build failure.

* gnu/packages/patches/perl-www-curl-remove-symbol.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/web.scm (perl-www-curl)[source]: Use it.

gnu: r-jsonlite: Update to 1.1.

* gnu/packages/web.scm (r-jsonlite): Update to 1.1.

gnu: r-curl: Update to 2.2.

* gnu/packages/web.scm (r-curl): Update to 2.2.

Merge branch 'master' into core-updates

gnu: Add python-feedparser.

* gnu/packages/python.scm (python-feedparser): New variable.

Signed-off-by: Efraim Flashner <efraim@flashner.co.il>

gnu: nginx: Update to 1.11.4.

* gnu/packages/web.scm (nginx): Update to 1.11.4.
[source] Use https.
[home-page]: Use https.

Merge branch 'master' into core-updates

gnu: json-c: Update to 0.12.1.

* gnu/packages/web.scm (json-c): Update to 0.12.1.

gnu: Add GoAccess.

* gnu/packages/web.scm (goaccess): New variable.