download: Add Hackage mirrors.

* guix/download.scm [%mirrors]: Add Hackage mirrors.

gnu: geiser-next: Re-introduce it.

* gnu/packages/emacs.scm (geiser-next): Re-introduce it.

gnu: Add chez-scmutils.

* gnu/packages/chez.scm (chez-scmutils): New variable.

gnu: Add chez-mit.

* gnu/packages/chez.scm (chez-mit): New variable.

gnu: haskell-mode: Update to 16.1.

* gnu/packages/emacs.scm (haskell-mode): Update to 16.1.
  [inputs]: Add 'emacs-el-search' and 'emacs-stream'.
  [propagated-inputs]: Add 'emacs-dash'.
  [arguments]: Add modules. Adapt 'pre-build' and 'install' phases.

gnu: Add emacs-el-search.

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

gnu: Add emacs-stream.

* gnu/packages/emacs.scm (emacs-stream): New varaible.

gnu: fio: Update to 2.15.

* gnu/packages/benchmark.scm (fio): Update to 2.15.

gnu: Add ccid.

* gnu/packages/security-token.scm (ccid): New variable.

gnu: openocd: Correct license.

* gnu/packages/embedded.scm (openocd)[license]: Change to gpl2+.

gnu: libtiff: Fix CVE-2016-5652.

* gnu/packages/patches/libtiff-CVE-2016-5652.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/image.scm (libtiff-fixed)[source]: Use it.

gnu: guix: Always depend on the development dependencies.

Suggested by Chris Marusich <cmmarusich@gmail.com> at
<https://lists.gnu.org/archive/html/guix-devel/2016-10/msg00425.html>.

* gnu/packages/package-management.scm (guix-0.11.0)[native-inputs]: Add
Autoconf, Automake, Gettext, Texinfo, Graphviz, and Help2man.
(guix-devel)[native-inputs]: Remove.

gnu: emacs-debbugs: Update to 0.11.

* gnu/packages/emacs.scm (emacs-debbugs): Update to 0.11.

system: Record store file system info in each generation.

* gnu/system.scm (<boot-parameters>)[store-device, store-mount-point]:
New fields.
(read-boot-parameters): Initialize them.
(operating-system-grub.cfg): Likewise.  Remove STORE-FS argument from
call to 'grub-configuration-file'.
(operating-system-parameters-file): Add 'store' element in
'boot-parameters'.
* gnu/system/grub.scm (strip-mount-point): Replace 'store-fs' parameter
by 'mount-point'; adjust accordingly.  Adjust callers.
(<menu-entry>)[device, device-mount-point]: New fields.
(eye-candy): Replace 'root-fs' parameter by 'store-device'; add
'store-mount-point'.  Use keyword arguments for 'system' and 'port'.
(grub-root-search): Remove 'root-fs' by 'device' and adjust
accordingly.
(grub-configuration-file): Remove 'store-fs' parameter.  Adjust
accordingly.
* guix/scripts/system.scm (previous-grub-entries): Initialize 'device'
and 'device-mount-point' fields from PARAMS.
* doc/guix.texi (GRUB Configuration): Document 'device' and
'device-mount-point'.  Explain that 'linux' can be prefixed by a GRUB
device name.

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

gnu: Add nethogs.

* gnu/packages/networking.scm (nethogs): New variable.

Signed-off-by: Leo Famulari <leo@famulari.name>

gnu: Add python-imagesize.

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

Signed-off-by: Leo Famulari <leo@famulari.name>

gnu: python-pyusb: Prettify library substitution.

* gnu/packages/libusb.scm (python-pyusb)[arguments]: Use srfi-1 to make
the "fix-libusb-reference" phase clearer.

gnu: python-waf: Download over https.

* gnu/packages/python.scm (python-waf)[source]: Use https.

gnu: samba: Update to 4.5.1.

* gnu/packages/samba.scm (samba): Update to 4.5.1.

profiles: manifest-lookup-package: Cosmetic changes.

* guix/profiles.scm (manifest-lookup-package): Rename variables; use
"string=?" instead of "equal?".