gnu: Add Class-Singleton.

* gnu/packages/perl.scm (perl-class-singleton): New variable.

gnu: Add Catalyst-DispatchType-Regex.

* gnu/packages/web.scm (perl-catalyst-dispatchtype-regex): New
  variable.

gnu: Add fcitx.

* gnu/packages/fcitx.scm: New file.
* gnu-system.am (GNU_SYSTEM_MODULES): Add it.

gnu: icecat: Apply fixes for CVE-2015-{0801,0807,0815,0816}.

Actually, CVE-2015-0801 and CVE-2015-0816 were already patched in
4c153a9125fa0913077b06b5ed537958ae4ca163, but the corresponding CVEs
were not yet announced.

* gnu/packages/patches/icecat-bug-1146339.patch: Rename to ...
* gnu/packages/patches/icecat-CVE-2015-0801.patch: ... this.
* gnu/packages/patches/icecat-bug-1144991.patch: Rename to ...
* gnu/packages/patches/icecat-CVE-2015-0816.patch: ... this.
* gnu/packages/patches/icecat-CVE-2015-0807.patch,
  gnu/packages/patches/icecat-CVE-2015-0815-pt1.patch,
  gnu/packages/patches/icecat-CVE-2015-0815-pt2.patch,
  gnu/packages/patches/icecat-CVE-2015-0815-pt3.patch: New files.
* gnu-system.am (dist_patch_DATA): Add them, and adapt to renamed files.
* gnu/packages/gnuzilla.scm (icecat): Add patches, and adapt to renamed files.

gnu: linux-libre: Update to 3.19.3.

The changes to linux-libre-*.conf are by Jason Self <j@jxself.org>.

* gnu/packages/patches/linux-libre-libreboot-fix.patch: New file.
* gnu-system.am (dist_patch_DATA): Add it.
* gnu/packages/linux.scm (linux-libre): Update to version 3.19.3.
  Add patch.
* gnu/packages/linux-libre-i686.conf,
  gnu/packages/linux-libre-x86_64.conf: Update for 3.19.x.

Co-Authored-By: Jason Self <j@jxself.org>

gnu: Add clustal omega.

* gnu/packages/bioinformatics.scm (clustal-omega): New variable.

gnu: Add argtable.

* gnu/packages/popt.scm (argtable): New variable.

gnu: pulseaudio: Increase timeout on cpu-mix-test.

* gnu/packages/patches/pulseaudio-longer-test-timeout.patch: New file.
* gnu-system.am (dist_patch_DATA): Add it.
* gnu/packages/pulseaudio.scm (pulseaudio)[source]: Add patch.

gnu: xterm: Update to 317.

* gnu/packages/xorg.scm (xterm): Update to 317.

gnu: pbtranscript-tofu: Add missing inputs.

* gnu/packages/bioinformatics.scm (pbtranscript-tofu)[inputs]: Add missing
  runtime inputs.

gnu: pbtranscript-tofu: Delete pre-built libraries.

* gnu/packages/bioinformatics.scm (pbtranscript-tofu)[arguments]: Delete
  "build" directory and any shared objects after unpacking.

gnu: Add python-networkx.

* gnu/packages/python.scm (python-networkx, python2-networkx): New variables.

gnu: Add python-decorator.

* gnu/packages/python.scm (python-decorator, python2-decorator): New
  variables.

gnu: Add vcftools.

* gnu/packages/bioinformatics.scm (vcftools): New variable.

gnu: Add cutadapt.

* gnu/packages/bioinformatics.scm (cutadapt): New variable.

gnu: ngircd: Fix test suite.

* gnu/packages/messaging.scm (ngircd): Overwrite getpid.sh with a more
  reliable version.

gnu: Add missing copyright line.

* gnu/packages/graphics.scm: Add copyright line for 87bafa0.

Revert "gnu: tzdata: Update to 2015b."

This reverts commit 41fd23334d9932c978579576fd86c5f89894c015.

gnu: Add audacity.

* gnu/packages/audacity.scm: New file.
* gnu-system.am (GNU_SYSTEM_MODULES): Add it.
* gnu/packages/patches/audacity-fix-ffmpeg-binding.patch: New file.
* gnu-system.am (dist_patch_DATA): Add it.

gnu: portaudio: Patch for Audacity compatibility.

* gnu/packages/audio.scm (portaudio): Add a patch for Audacity compatibility.
* gnu/packages/patches/portaudio-audacity-compat.patch: New file.
* gnu-system.am (dist_patch_DATA): Add it.