doc: Mark 2.0.5 as being the minimum Guile version.

* doc/guix.texi (Requirements): Require Guile 2.0.5+.
* README: Ditto.

Update .po files.

Update NEWS.

doc: Refer to guix-devel@gnu.org.

* doc/guix.texi (Contributing): Refer to guix-devel@gnu.org.

gnu: subversion: Fetch over plain HTTP.

* gnu/packages/version-control.scm (subversion): Use the http:// URL
  to work around <http://bugs.gnu.org/14884>.  Reported by Mark Weaver
  and Andreas Enge.

list-packages: Add links to hydra.gnu.org.

* build-aux/list-packages.scm (package->sxml)[status]: New procedure.
  Use it at the end of each description.
  (packages->sxml): Add link to hydra.gnu.org.

gnu: libphidget: Add "debug" output.

* gnu/packages/libphidget.scm (libphidget): Add `outputs' field.

hydra: Fix typo.

* build-aux/hydra/gnu-system.scm (hydra-jobs): Use `cons', not `append'.

hydra: Build for all the specified systems.

* build-aux/hydra/gnu-system.scm (hydra-jobs): Pick all the `system'
  keys in ARGUMENTS.
  [cross-jobs]: Turn into a procedure, with a `system' parameter.
  Build packages for all of SYSTEMS and %CROSS-TARGETS.

hydra: Distinguish between jobs for different system types.

* build-aux/hydra/gnu-system.scm (package-job, package-cross-job):
  Append `.SYSTEM' to the job name.

hydra: Honor the `system' argument.

* build-aux/hydra/gnu-system.scm (hydra-jobs): Really look up the
  `system' symbol in ARGUMENTS.

gnu: libapr, libaprutil: Upgrade.

* gnu/packages/libapr.scm (libapr): Upgrade to 1.4.8.
* gnu/packages/libapr.scm (libaprutil): Upgrade to 1.5.2.

guix package: Allow separate install of several outputs of the same package.

* guix/scripts/package.scm (guix-package)[process-actions](same-package?):
  New procedure.  Use it instead of `alist-delete' when filtering out
  duplicate packages from the profile.

build: Check for the availability of binaries upon "distcheck".

* build-aux/check-available-binaries.scm: New file.
* Makefile.am (EXTRA_DIST): Add it.
  (distcheck-hook, assert-binaries-available): New target.

Thank the translators.

Add `pt_BR' translation.

gnu: pango, gtk+: Propagate inputs.

* gnu/packages/gtk.scm (pango): Propagate input cairo.
* gnu/packages/gtk.scm (gtk+): Propagate inputs atk, gdk-pixbuf and pango;
    drop input cairo, propagated through pango.

Add gtk+.

* gnu/packages/gtk.scm (pango): Propagate input harfbuzz.
* gnu/packages/gtk.scm (gtk+): New variable.

gnu: make-bootstrap: Skip tests for the statically-linked gawk.

* gnu/packages/make-bootstrap.scm (%static-inputs)[gawk]: Add #:tests? #f.

Update `eo.po'.