* gnu/packages/audio.scm (alsa-modular-synth): Update to 2.1.2.

* gnu/packages/ruby.scm (ruby-ttfunk): New variable.

* gnu/packages/ruby.scm (ruby-ascii85): New variable.

* gnu/packages/ruby.scm (ruby-afm): New variable.

* gnu/packages/ruby.scm (ruby-rc4): New variable.

* gnu/packages/ruby.scm (ruby-hashery): New variable.

* gnu/packages/ruby.scm (ruby-rubytest-cli): New variable.

* gnu/packages/ruby.scm (ruby-lemon): New variable.

* gnu/packages/ruby.scm (ruby-ae): New variable.

* gnu/packages/ruby.scm (ruby-qed): New variable.

* gnu/packages/ruby.scm (ruby-brass): New variable.

* gnu/packages/ruby.scm (ruby-rubytest): New variable.

* gnu/packages/bioinformatics.scm (sra-tools): Update to 2.5.7.

gnu/packages/bioinformatics.scm (ncbi-vdb): Update to 2.5.7.

gnu/packages/bioinformatics.scm (ngs-sdk): Update to 1.2.3.

* gnu/packages/aspell.scm (aspell-dict-en): Update to 2016.01.19-0.

* emacs/guix-main.scm (%license-param-alist): New variable.
  (license->sexp, find-licenses, license-entries): New procedures.
* emacs/guix-license.el (guix-license-get-entries)
  (guix-license-get-display, guix-license-insert-packages-button)
  (guix-license-insert-comment, guix-license-list-describe)
  (guix-license-list-show-packages): New procedures.
  (guix-licenses): New command.
* doc/emacs.texi (Emacs Licenses): New node.
  (Emacs Interface): Add it.
* doc/guix.texi (Top): Add it.
* NEWS: Mention new interface.

* emacs/guix-list.el (guix-list-url): New face.
  (guix-list-get-url): New procedure.

* emacs/guix-main.scm (packages-by-license): New procedure.
(%patterns-makers): Add 'license' search type.
* emacs/guix-messages.el (guix-message-packages-by-license): New procedure.
(guix-messages): Use it.
* emacs/guix-ui-package.el (guix-packages-by-license): New command.
* doc/emacs.texi (Emacs Commands): Document it.

* emacs/guix-ui-package.el (guix-package-license): New button type.
  (guix-package-info-format, guix-output-info-format): Use it.
* doc/emacs.texi (Emacs Info buffer): Mention it.

* emacs/guix-main.scm (%licenses): New variable.
(licenses, license-names, lookup-license, lookup-license-uri): New
procedures.
* emacs/guix-read.el (guix-license-names, guix-read-license-name): New
procedures.
* emacs/guix-license.el: New file.
(guix-lookup-license-url): New procedure.
(guix-browse-license-url): New command.
* emacs.am (ELFILES): Add new file.

* emacs/guix-info.el (guix-info-file-path): Rename to...
  (guix-info-file-name): ... this.
* emacs/guix-list.el (guix-list-file-path): Rename to...
  (guix-list-file-name): ... this.
  (guix-list-get-file-path): Rename to...
  (guix-list-get-file-name): ... this.
* emacs/guix-ui-generation.el (guix-generation-list-format): Adjust
  accordingly.
* emacs/guix-ui-system-generation.el (guix-system-generation-list-format):
  Likewise.
* NEWS: Mention faces renaming.

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

* gnu/packages/check.scm (cmocka): New variable.

* gnu/packages/compression.scm (pixz): New variable.

* doc/guix.texi (Version Numbers): Add paragraphs about VCS snapshot
version numbers.

* doc/guix.texi (Networking Services): Remove unneeded backslashes.

* gnu/packages/grue-hunter.scm (grue-hunter): Use 'https' URL.

This is a followup to e26d5076.

* doc/guix.texi (Initial RAM Disk): #:virtio? defaults to #t.

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

* doc/guix.texi (Daemon Offload Setup): Fix quoting typo in command.

* gnu/packages/ebook.scm (calibre): Update to 2.49.0.

* gnu/packages/cross-base.scm (cross-gcc-arguments)[arguments]: Disable
  building libstdc++-v3 and enable building C++ compiler.

* gnu/packages/music.scm (qtractor): New variable.

* gnu/packages/music.scm (yoshimi): Update to 1.3.8.2.

* gnu/packages/tor.scm (privoxy): Update to 3.0.24.

* gnu/packages/tor.scm (tor): Update to 0.2.7.6.

* gnu/packages/version-control.scm (myrepos): Update to 1.20160123.

* gnu/packages/nano.scm (nano): Update to 2.5.1.

* gnu/build/linux-container.scm (unprivileged-user-namespace-supported?): Only
  read and check the first character, to cope with a possible newline in the
  (pseudo-)file.