gnu: syslinux: Add explicit dependency on mtools.

Suggested by Adam Van Ymeren <adam@vany.ca>
at <https://bugs.gnu.org/28974>.

* gnu/packages/bootloaders.scm (syslinux)[inputs]: Add MTOOLS.
[ARGUMENTS]: In 'patch-files' phase, patch references to 'mcopy' and
'mattrib'.

gnu: wget: Add wget2.

* gnu/packages/wget.scm (wget2): New variable.

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

gnu: spectrwm: Update to 3.1.0.

* gnu/packages/wm.scm (spectrwm): Update to 3.1.0.

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

gnu: xpra: Fix paths.

* gnu/packages/xorg.scm (xpra): [arguments]: Add '--without-opengl',
'--without-Xdummy' and '--without-Xdummy-wrapper' to #:configure-flags. Add
substitutions to #phases for proper paths.

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

gnu: messaging: Enable OMEMO for dino.

* gnu/packages/messaging.scm (dino): Update to commit
f6ac5bbd26638412a2289fd1d28ef12de1d7e8b5.
[inputs]: Add libsignal-protocol-c and libgcrypt.
[arguments]: Change #configure-flags to "-DSHARED_SIGNAL_PROTOCOL=yes".

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

gnu: messaging: Add libsignal-protocol-c.

* gnu/packages/messaging.scm (libsignal-protocol-c): New variable.

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

ui: Add source file name to the package search metrics.

* guix/ui.scm (%package-metrics): Include 'package-location'.  Increase
score of the other fields.

gnu: Move more packages from python to python-web.

* gnu/packages/python.scm (python-requests, python2-requests)
(python-requests-2.7, python-oauthlib, python2-oauthlib)
(python-furl, python2-furl, python-wsgi-intercept)
(python-publicsuffix, python2-publicsuffix)
(python-publicsuffix2, python2-publicsuffix2): Move to...
* gnu/packages/python-web.scm: ... here.
* gnu/packages/bioinformatics.scm, gnu/packages/finance.scm:
gnu/packages/maths.scm, gnu/packages/terminals.scm,
gnu/packages/video.scm, gnu/packages/virtualization.scm: Adjust
accordingly.

gnu: Move Python packages from crypto to python-crypto.

* gnu/packages/crypto.scm (python-asn1crypto, python2-asn1crypto)
(python-pynacl, python2-roca-detect): Move to python-crypto.scm.
* gnu/packages/gnupg.scm (python2-pgpdump): Move to python-crypto.scm.
* gnu/packages/python-crypto.scm (python-asn1crypto, python2-asn1crypto)
(python-pynacl, python2-pgpdump, python2-roca-detect): New variables.

gnu: Move crypto packages from python to python-crypto.

* gnu/packages/python.scm (python-passlib, python2-passlib)
(python-py-bcrypt, python2-py-bcrypt)
(python-paramiko, python2-paramiko, python-ecdsa, python2-ecdsa)
(python-pycrypto, python2-pycrypto, python-keyring, python2-keyring)
(python-certifi, python2-certifi)
(python-cryptography-vectors, python2-cryptography-vectors)
(python-cryptography, python2-cryptography)
(python-pyopenssl, python2-pyopenssl)
(python-axolotl-curve25519, python2-axolotl-curve25519)
(python-axolotl, python2-axolotl, python2-slowaes)
(python-pyaes, python2-pyaes): Move to...
* gnu/packages/python-crypto.scm: ... here.  New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
* gnu/packages/admin.scm, gnu/packages/backup.scm,
gnu/packages/crypto.scm, gnu/packages/finance.scm,
gnu/packages/irc.scm, gnu/packages/jrnl.scm,
gnu/packages/messaging.scm, gnu/packages/openstack.scm,
gnu/packages/python-web.scm, gnu/packages/tls.scm,
gnu/packages/xorg.scm: Adjust accordingly.

cve: Use 'http-fetch/cached' instead of having custom caching.

That way CVE fetching benefits from 'If-Modified-Since' handling.

* guix/http-client.scm (http-fetch/cached): Add #:write-cache and
 #:cache-miss parameters and honor them.
* guix/cve.scm (%current-year-ttl, %past-year-ttl): Reduce.
(call-with-cve-port): Remove.
(write-cache): New procedure.
(fetch-vulnerabilities): Rewrite in terms of 'http-fetch/cached'.

download: Improve efficiency of 'write-request' over TLS.

This is another instance of <https://bugs.gnu.org/22966>.
The Microsoft-IIS/7.5 server at static.nvd.nist.gov would sometimes hang
when receiving our requests byte by byte.

* guix/build/download.scm (tls-wrap) [!guile-2.0]: Add 'setvbuf' call.

gnu: linux-libre: Update to 4.14.

* gnu/packages/linux.scm (%linux-libre-version): Update to 4.14.
(%linux-libre-hash): Update hash.
* gnu/packages/aux-files/linux-libre/4.13-arm.conf,
gnu/packages/aux-files/linux-libre/4.13-i686.conf,
gnu/packages/aux-files/linux-libre/4.13-x86_64.conf: Delete files.
* gnu/packages/aux-files/linux-libre/4.14-arm.conf,
gnu/packages/aux-files/linux-libre/4.14-i686.conf,
gnu/packages/aux-files/linux-libre/4.14-x86_64.conf: New files.
* Makefile.am (AUX_FILES): Update accordingly.

gnu: linux-libre@4.9: Update to 4.9.62.

* gnu/packages/linux.scm (linux-libre-4.9): Update to 4.9.62.

gnu: linux-libre@4.4: Update to 4.4.98.

* gnu/packages/linux.scm (linux-libre-4.4): Update to 4.4.98.

gnu: icecat: Add more fixes from upstream mozilla-esr52.

Add fixes for CVE-2017-7830, the remaining 1/2 changesets for CVE-2017-7828,
the remaining 1/19 changesets for CVE-2017-7826, and selected other fixes.

* gnu/packages/gnuzilla.scm (icecat)[source]: Add selected fixes from the
upstream mozilla-esr52 repository.
* gnu/packages/patches/icecat-bug-1348660-pt5.patch,
gnu/packages/patches/icecat-bug-1415133.patch: New files.
* gnu/local.mk (dist_patch_DATA): Add them.

gnu: icecat: Label patches to reflect CVE assignments.

Document that we include 18/19 changesets for CVE-2017-7826, and 1/2
changesets for CVE-2017-7828.

* gnu/packages/gnuzilla.scm (icecat)[source]: Rename patches to reflect CVE
assignments.

gnu: iproute2: Update to 4.14.1.

* gnu/packages/linux.scm (iproute): Update to 4.14.1.

gnu: gnucash: Use HTTPS for www.gnucash.org.

* gnu/packages/gnucash.scm (gnucash, gnucash-docs)[home-page]: Use HTTPS.

gnu: gnucash: Update to 2.6.18.

* gnu/packages/gnucash.scm (gnucash): Update to 2.6.18.