gnu: dub: Flesh out synopsis & description.

* gnu/packages/ldc.scm (dub)[synopsis, description]: Actually explain what
dub is and does.

build: Download aarch64 bootstrap binaries from alpha.gnu.org.

* build-aux/download.scm (file-name->uri): Remove flashner.co.il URL.
* gnu/packages/package-management.scm (boot-guile-uri): Likewise.

gnu: emacs-company: Enable tests.

* gnu/packages/emacs.scm (emacs-company)[arguments]: Add a 'check' phase.

build: Stop building gnu/build/svg.scm.

* Makefile.am (EXTRA_DIST): Add gnu/build/svg.scm.
* gnu/local.mk (GNU_SYSTEM_MODULES): Remove gnu/build/svg.scm.

It fixes the following build warnings:

gnu/build/svg.scm:36:12: warning: possibly unbound variable `cairo-create'
gnu/build/svg.scm:36:26: warning: possibly unbound variable `cairo-image-surface-create'
gnu/build/svg.scm:38:4: warning: possibly unbound variable `cairo-scale'
gnu/build/svg.scm:39:4: warning: possibly unbound variable `cairo-set-source-surface'

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

build-system/cargo: Remove store reference.

* guix/build/cargo-build-system.scm (generate-checksums): Remove store
  reference from comment. This comment was matching
  assert-no-store-file-names regexp in Makefile.am.
  Also, edit procedure docstring to precise that DIR-NAME is a store
  directory.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

build: Remove build-aux/hydra/demo-os.scm from EXTRA_DIST.

* Makefile.am (EXTRA_DIST): Remove build-aux/hydra/demo-os.scm. The
  file was removed of guix in this commit
  a3a27745013f3e5a287de3bf0187b2f72beb6965.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu: Add guile-syntax-highlight.

* gnu/packages/guile.scm (guile-syntax-highlight): New variable.

Co-authored-by: Ludovic Courtès <ludo@gnu.org>

gnu: julia: Update to 0.5.1.

* gnu/packages/julia.scm (julia): Update to 0.5.1.

gnu: Add emacs-cdlatex.

* gnu/packages/emacs.scm (emacs-cdlatex): New variable.

gnu: mafft: Update to 7.310.

* gnu/packages/bioinformatics.scm (mafft): Update to 7.310.

gnu: Add fillets-ng.

* gnu/packages/games.scm (fillets-ng): New variable.

gnu: Add teeworlds.

* gnu/packages/games.scm (teeworlds): New variable.
* gnu/packages/patches/teeworlds-use-latest-wavpack.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add patch.

gnu: Add bam.

* gnu/packages/build-tools.scm: New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.

gnu: password-store: Update to 1.7.1.

* gnu/packages/password-utils.scm (password-store): Update to 1.7.1.
[source]: Remove "password-store-gnupg-compat.patch".
* gnu/packages/patches/password-store-gnupg-compat.patch: Delete file.
* gnu/local.mk (dist_patch_DATA): Remove it.

gnu: php: Update to 7.1.4.

* gnu/packages/php.scm (php): Update to 7.1.4.

Signed-off-by: Arun Isaac <arunisaac@systemreboot.net>

gnu: postgresql: Update to 9.6.2.

* gnu/packages/databases.scm (postgresql): Update to 9.6.2.

Signed-off-by: Arun Isaac <arunisaac@systemreboot.net>

gnu: emacs-zenburn-theme: Update to 2.5.

* gnu/packages/emacs.scm (emacs-zenburn-theme): Update to 2.5.

Signed-off-by: Arun Isaac <arunisaac@systemreboot.net>

gnu: emacs-flycheck: Update to 30.

* gnu/packages/emacs.scm (emacs-flycheck): Update to 30.

Signed-off-by: Arun Isaac <arunisaac@systemreboot.net>

gnu: emacs-clojure-mode: Update to 5.4.0.

* gnu/packages/emacs.scm (emacs-clojure-mode): Update to 5.4.0.

Signed-off-by: Arun Isaac <arunisaac@systemreboot.net>

gnu: emacs-company: Update to 0.9.3.

* gnu/packages/emacs.scm (emacs-company): Update to 0.9.3.

Signed-off-by: Arun Isaac <arunisaac@systemreboot.net>