gnu: Add ant-bootstrap.

* gnu/packages/java.scm (ant-bootstrap): New variable.

gnu: Add sablevm.

* gnu/packages/java.scm (sablevm): New variable.

gnu: Add sablevm-classpath.

* gnu/packages/java.scm (sablevm-classpath): New variable.

gnu: Add jikes.

* gnu/packages/java.scm (jikes): New variable.

gnu: Add r-edaseq.

* gnu/packages/bioinformatics.scm (r-edaseq): New variable.

gnu: Add r-deseq.

* gnu/packages/bioinformatics.scm (r-deseq): New variable.

gnu: Add r-aroma-light.

* gnu/packages/bioinformatics.scm (r-aroma-light): New variable.

Merge branch 'version-0.13.0'

Update NEWS.

gnu: vte-ng: Update to 0.48.3.a.

* gnu/packages/gnome.scm (vte-ng): Update to 0.48.3.a.

gnu: gexiv2: Update to 0.10.6.

* gnu/packages/gnome.scm (gexiv2): Update to 0.10.6.

gnu: dconf-editor: Update to 3.22.3.

* gnu/packages/gnome.scm (dconf-editor): Update to 3.22.3.

gnu: aisleriot: Update to 3.22.2.

* gnu/packages/gnome.scm (aisleriot): Update to 3.22.2.

gnu: vte: Update to 0.48.3.

* gnu/packages/gnome.scm (vte): Update to 0.48.3.

gnu: fraggenescan: Update to 1.30.

* gnu/packages/bioinformatics.scm (fraggenescan): Update to 1.30.
[arguments]: Update patching of paths, install procedure.  Add new test
case.

gnu: roary: Update to 3.8.2.

* gnu/packages/bioinformatics.scm (roary): Update to 3.8.2.

gnu: taxtastic: Update to 0.6.4.

* gnu/packages/bioinformatics.scm (taxtastic): Update to 0.6.4.
[source]: Use PyPI URI.

gnu: r-mutationalpatterns: Update to 1.2.1.

* gnu/packages/bioinformatics.scm (r-mutationalpatterns): Update to 1.2.1.

bootloader: extlinux: Add a warning message on top of generated conf file.

* gnu/bootloader/extlinux.scm (extlinux-configuration-file): Warn users about
  the fact that the configuration file is automatically generated.

gnu: v4l-utils: Update to 1.12.5.

* gnu/packages/video.scm (v4l-utils): Update to 1.12.5.