gnu: Add ruby-bio-commandeer. * gnu/packages/ruby.scm (ruby-bio-commandeer): New variable.
gnu: Add ruby-systemu. * gnu/packages/ruby.scm (ruby-systemu): New variable.
gnu: ruby-2.1: Update to 2.1.8. * gnu/packages/ruby.scm (ruby-2.1): Update to 2.1.8.
gnu: Add ruby-ansi. * gnu/packages/ruby.scm (ruby-ansi): New variable.
gnu: Add and use default IcedTea. * gnu/packages/java.scm (icedtea): New variable. (swt)[native-inputs]: Replace "icedtea6" with "icedtea". * gnu/packages/bioinformatics.scm (htsjdk)[native-inputs]: Likewise. (ngs-java)[inputs]: Likewise. * gnu/packages/kodi.scm (kodi)[native-inputs]: Replace "icedtea7" with "icedtea". * gnu/packages/ruby.scm (ruby-rjb)[native-inputs]: Replace "icedtea7" with "icedtea".
gnu: ruby-nokogiri: Upgrade to 1.6.7.1. * gnu/packages/ruby.scm (ruby-nokogiri): Upgrade to 1.6.7.1.
gnu: Add ruby-mini-portile-2. * gnu/packages/ruby.scm (ruby-mini-portile-2): New variable.
gnu: ruby: Update to 2.2.4. This version fixes CVE-2015-7551. * gnu/packages/ruby.scm (ruby): Update to 2.2.4.
gnu: ruby-unf-ext: Build extension. * gnu/packages/ruby.scm (ruby-unf-ext)[arguments]: Add phase "build-ext" to build "unf_ext.so".
gnu: Add ruby-redcloth. * gnu/packages/ruby.scm (ruby-redcloth): New variable.
gnu: Add ruby-sanitize. * gnu/packages/ruby.scm (ruby-sanitize): New variable.
gnu: Add ruby-pygmentize. * gnu/packages/ruby.scm (ruby-pygmentize): New variable.
gnu: Add ruby-cutest. * gnu/packages/ruby.scm (ruby-cutest): New variable.
gnu: Add ruby-clap. * gnu/packages/ruby.scm (ruby-clap): New variable.
gnu: Add ruby-nokogumbo. * gnu/packages/ruby.scm (ruby-nokogumbo): New variable.
gnu: Add ruby-crass. * gnu/packages/ruby.scm (ruby-crass): New variable.
gnu: Add ruby-nokogiri-diff. * gnu/packages/ruby.scm (ruby-nokogiri-diff): New variable.
gnu: Add ruby-tdiff. * gnu/packages/ruby.scm (ruby-tdiff): New variable.
gnu: Add ruby-unf-ext. * gnu/packages/ruby.scm (ruby-unf-ext): New variable.
gnu: Add ruby-netrc. * gnu/packages/ruby.scm (ruby-netrc): New variable.