gnu: miso: Use pypi-uri.

* gnu/packages/bioinformatics.scm (miso)[source]: Use pypi-uri.

gnu: Add r-vcd.

* gnu/packages/cran.scm (r-vcd): New variable.

gnu: Add r-laeken.

* gnu/packages/cran.scm (r-laeken): New variable.

doc: Move paragraph about signature verification to the top.

* doc/contributing.texi (Submitting Patches): Remind contributors to verify
cryptographic signatures at the very beginning.

gnu: fastcap: Use texlive-tiny.

* gnu/packages/engineering.scm (fastcap)[native-inputs]: Replace texlive with
texlive-tiny.
[arguments]: Fix indentation; set HOME in "make-pdf" phase to avoid font
errors with texlive-tiny.

gnu: librecad: Fix build.

* gnu/packages/engineering.scm (librecad)[arguments]: Add phase
"patch-boost-error".

gnu: Add r-performanceanalytics.

* gnu/packages/cran.scm (r-performanceanalytics): New variable.

gnu: Add r-xts.

* gnu/packages/cran.scm (r-xts): New variable.

gnu: Remove "open source" from descriptions.

All software in Guix is Free Software.

* gnu/packages/aidc.scm (libdmtx)[description]: Remove "open source" string.
* gnu/packages/firmware.scm (seabios)[description]: Likewise.
* gnu/packages/libupnp.scm (libupnp)[description]: Likewise.
* gnu/packages/maths.scm (cubicle)[description]: Likewise.
* gnu/packages/mingw.scm (mingw-w64)[description]: Likewise.
* gnu/packages/game-development.scm (openmw)[description]: Likewise.
[synopsis]: Remove "Free software".

gnu: pcb: Update to 4.0.2.

* gnu/packages/engineering.scm (pcb): Update to 4.0.2.
[arguments]: Add build phase "fix-check-for-display".

gnu: time: Update license.

* gnu/packages/time.scm (time)[license]: Change to gpl3+.

gnu: time: Update to 1.8.

* gnu/packages/time.scm (time): Update to 1.8.
[arguments]: Remove custom 'configure phase.

gnu: Add glusterfs.

* gnu/packages/file-systems.scm (glusterfs): New variable.

gnu: r-prabclus: Update description.

* gnu/packages/statistics.scm (r-prabclus)[description]: Fix grammar errors.

gnu: r-fdrtool: Update description.

* gnu/packages/statistics.scm (r-fdrtool)[description]: Use "@dfn" syntax.

gnu: Add r-bbmle.

* gnu/packages/cran.scm (r-bbmle): New variable.

gnu: Add r-rsofia.

* gnu/packages/cran.scm (r-rsofia): New variable.

gnu: Add r-hitc.

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

gnu: Add r-fithic.

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

gnu: Add r-sushi.

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