gnu: perl-module-pluggable: Fix perms on patch.

* gnu/packages/patches/perl-module-pluggable-search.patch: Remove executable
bit.

publish: Remove "Guix-Nar-Compression" header from responses.

This was harmless but non-compliant and unnecessary.

* guix/scripts/publish.scm <top level>: Rename "Guix-Nar-Compression" to
"X-Nar-Compression" as should have always been.
(render-nar, nar-response-port): Adjust accordingly.
(strip-headers): New procedure.
(sans-content-length, with-content-length): Use it.

system: Extend .gdbinit to authorize extensions from /gnu/store/*/lib.

* gnu/system/shadow.scm (default-skeletons)["gdbinit"]: Add 'auto-load
safe-path' statement.

gnu: libb2: Only check for CPU optimisations on Intel architectures.

* gnu/packages/crypto.scm (libb2)[arguments]: Only pass the
configure-flag '--enable-fat' on i686 or x86_64.

gnu: iucode-tool: Limit to Intel compatible architectures.

* gnu/packages/linux.scm (iucode-tool)[supported-systems]: New field.

gnu: notmuch: Update to 0.26.

* gnu/packages/mail.scm (notmuch): Update to 0.26.

tests: marionette-operating-system: Add initrd parameter and kernel-arguments.

* gnu/tests.scm (marionette-operating-system): Use initrd parameter "on-error"
and kernel-arguments "panic".

system: Export operating-system-user-kernel-arguments.

* gnu/system.scm (operating-system-user-kernel-arguments): Export it.

gnu: behave: Enable tests.

* gnu/packages/check.scm (behave)[native-inputs]: Add python-mock, python-nose
and python-pyhamcrest.
[arguments]: Remove #:tests?.  Add #:test-target.

gnu: gnucash: Update to 2.6.19.

* gnu/packages/gnucash.scm (gnucash, gnucash-docs): Update to 2.6.19.

gnu: tor: Update to 3.2.9.

* gnu/packages/tor.scm (tor): Update to 0.3.2.9.

gnu: geierlein: Use HTTPS for home page.

* gnu/packages/finance.scm (geierlein)[home-page]: Use HTTPS.

gnu: geierlein: Update to 0.9.13.

* gnu/packages/finance.scm (geierlein): Update to 0.9.13.

gnu: libsrtp: Mark up description.

* gnu/packages/telephony.scm (libsrtp)[description]: Use @dfn.

gnu: libsrtp: Update to 1.6.0.

* gnu/packages/telephony.scm (libsrtp): Update to 1.6.0.  Re-indent.

gnu: seqmagick: Update to 0.7.0.

* gnu/packages/bioinformatics.scm (seqmagick): Update to 0.7.0.  Use
python-3.
[arguments]: Remove replacement phase for check.
[inputs]: Add biopython.  Remove python2-biopython-1.66.
(python2-biopython-1.66): Remove variable.

gnu: ledger: Fix test failures.

* gnu/packages/patches/ledger-revert-boost-python-fix.patch,
gnu/packages/patches/ledger-fix-uninitialized.patch: New patches.
* gnu/local.mk (dist_patch_DATA): Add them.
* gnu/packages/finance.scm (ledger)[source]: Use them.

gnu: emacs-auctex: Update to 12.1.0.

* gnu/packages/emacs.scm (emacs-auctex): Update to 12.1.0.

gnu: Electrum: Update to 3.0.5 [security fixes].

This fixes a critical security issue:

<https://github.com/spesmilo/electrum/issues/3374>

* gnu/packages/finance.scm (electrum): Update to 3.0.5.

gnu: kurly: Install some documentation.

* gnu/packages/curl.scm (kurly)[arguments]: Install the README in an
'install-readme' phase and don't install the source code.