gnu: jack-2: Fix jack_control script.

* gnu/packages/audio.scm (jack-2)[inputs]: Add python2-dbus.
[arguments]: Use python-2 and add build phase to wrap jack_control
Python script.

services: Add udev-rule procedure.

* gnu/services/base.scm (udev-rule): New procedure.
(kvm-udev-rule): Rewrite as variable in terms of udev-rule.

gnu: ghc-unordered-containers: Enable tests.

* gnu/packages/haskell.scm (ghc-unordered-containers)
  [arguments]: Remove.
  [inputs]: Add ghc-chasingbottoms, ghc-test-framework,
  ghc-test-framework-hunit, and ghc-test-framework-quickcheck2.

gnu: Add ghc-chasingbottoms.

* gnu/packages/haskell.scm (ghc-chasingbottoms): New variable.

gnu: ghc-attoparsec: Enable tests.

* gnu/packages/haskell.scm (ghc-attoparsec)[arguments]: Remove.
  [inputs]: Add ghc-quickcheck, ghc-quickcheck-unicode,
  ghc-test-framework, and ghc-test-framework-quickcheck2.

gnu: Add ghc-test-framework-quickcheck2.

* gnu/packages/haskell.scm (ghc-test-framework-quickcheck2): New
  variable.

gnu: ghc-async: Enable tests.

* gnu/packages/haskell.scm (ghc-async)[arguments]: Remove.
  [inputs]: Add ghc-hunit, ghc-test-framework, and
  ghc-test-framework-hunit.

gnu: ghc-regex-posix: Propagate inputs.

* gnu/packages/haskell.scm (ghc-regex-posix): Propagate ghc-regex-base
  input.

gnu: Add ghc-test-framework-hunit.

* gnu/packages/haskell.scm (ghc-test-framework-hunit): New variable.

gnu: Add ghc-test-framework.

* gnu/packages/haskell.scm (ghc-test-framework): New variable.

gnu: Add ghc-libxml.

* gnu/packages/haskell.scm (ghc-libxml): New variable.

gnu: Add ghc-hostname.

* gnu/packages/haskell.scm (ghc-hostname): New variable.

gnu: tilda: Update to 1.3.0.

* gnu/packages/terminals.scm (tilda): Update to 1.3.0.
[inputs]: Switch vte from 0.36 to 0.40, remove zip.

gnu: youtube-dl: Update to 2015.11.18.

* gnu/packages/video.scm (youtube-dl): Update to 2015.11.18.

gnu: libsndfile: Add fixes for CVE-2014-9496 and CVE-2015-7805.

* gnu/packages/patches/libsndfile-CVE-2014-9496.patch,
  gnu/packages/patches/libsndfile-CVE-2015-7805.patch: New files.
* gnu-system.am (dist_patch_DATA): Add them.
* gnu/packages/pulseaudio.scm (libsndfile)[source]: Add patches.

gnu: libxslt: Add fix for CVE-2015-7995.

* gnu/packages/patches/libxslt-CVE-2015-7995.patch: New file.
* gnu-system.am (dist_patch_DATA): Add it.
* gnu/packages/xml.scm (libxslt)[source]: Add patch.

gnu: libxml2: Add fixes for CVE-2015-{1819,7941,7942,8035} and other bugs.

* gnu/packages/patches/libxml2-CVE-2015-1819.patch,
  gnu/packages/patches/libxml2-CVE-2015-7941-pt1.patch,
  gnu/packages/patches/libxml2-CVE-2015-7941-pt2.patch,
  gnu/packages/patches/libxml2-CVE-2015-7942-pt1.patch,
  gnu/packages/patches/libxml2-CVE-2015-7942-pt2.patch,
  gnu/packages/patches/libxml2-CVE-2015-8035.patch,
  gnu/packages/patches/libxml2-bug-737840.patch,
  gnu/packages/patches/libxml2-bug-738805.patch,
  gnu/packages/patches/libxml2-bug-746048.patch,
  gnu/packages/patches/libxml2-bug-747437.patch,
  gnu/packages/patches/libxml2-bug-751603.patch,
  gnu/packages/patches/libxml2-bug-751631.patch,
  gnu/packages/patches/libxml2-bug-754946.patch,
  gnu/packages/patches/libxml2-bug-754947.patch,
  gnu/packages/patches/libxml2-bug-755857.patch,
  gnu/packages/patches/libxml2-fix-catalog-corruption.patch,
  gnu/packages/patches/libxml2-id-attrs-in-xmlSetTreeDoc.patch,
  gnu/packages/patches/libxml2-node-sort-order-pt1.patch,
  gnu/packages/patches/libxml2-node-sort-order-pt2.patch: New files.
* gnu-system.am (dist_patch_DATA): Add them.
* gnu/packages/xml.scm (libxml2)[source]: Add patches.

gnu: libpng: Update to 1.5.24 [fixes CVE-2015-8126].

* gnu/packages/image.scm (libpng): Update to 1.5.24.

Revert "gnu: libpng: Use 1.5.24 as a replacement [fixes CVE-2015-8126]."

This reverts commit 1b076e630f4a7245d14634b047e1d1a91ee2659e.

services: Export udev-configuration procedures.

* gnu/services/base.scm (udev-configuration, udev-configuration?,
  udev-configuration-rules): Export.