gnu: Use HTTPS for invisible-island.net home pages.

* gnu/packages/ncurses.scm (dialog)[home-page]: Use HTTPS.
* gnu/packages/version-control.scm (diffstat)[home-page]: Likewise.
* gnu/packages/xorg.scm (xterm)[home-page]: Likewise.

gnu: stagit: Update to 0.7.2.

* gnu/packages/version-control.scm (stagit): Update to 0.7.2.

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

gnu: fossil: Fix CVE-2017-17459.

* gnu/packages/patches/fossil-CVE-2017-17459.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/version-control.scm (fossil)[source]: Use it.

gnu: cgit: Patch absolute file names.

* gnu/packages/version-control.scm (cgit): Patch absolute file names.

gnu: Add gource.

* gnu/packages/version-control.scm (gource): New variable.

gnu: bazaar: Fix CVE-2017-14176.

* gnu/packages/patches/bazaar-CVE-2017-14176.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/version-control.scm (bazaar)[source]: Use it.

gnu: git: Remove unreliable git-svn tests.

Reported in <https://bugs.gnu.org/29546>
by Mark H Weaver <mhw@netris.org>.

* gnu/packages/version-control.scm (git)[arguments]: In 'patch-tests'
phase, delete three git-svn tests.

gnu: git: Update to 2.15.1.

* gnu/packages/version-control.scm (git): Update to 2.15.1.

gnu: git: Run tests sequentially.

Fixes <https://bugs.gnu.org/29512>.
Reported by George myglc2 Clemmer <myglc2@gmail.com>.

* gnu/packages/version-control.scm (git)[arguments]: Add
 #:parallel-tests?.

gnu: libgit2: Avoid dependency on cURL.

This reduces the closure size from 225 MiB to 80 MiB, while still
supporting HTTP(S) access.

* gnu/packages/version-control.scm (libgit2)[source](modules, snippet):
New fields.
[inputs]: Remove CURL; add HTTP-PARSER.

gnu: Move date/time packages from python.scm to time.scm.

* gnu/packages/python.scm (python-pytz, python2-pytz, python-dateutil,
python2-dateutil, python-parsedatetime, python2-parsedatetime,
python-tzlocal, python-isodate, python2-isodate, python-iso8601,
python2-iso8601, python-monotonic, python2-monotonic, python-pyrfc3339,
python2-pyrfc3339, python-arrow, python2-arrow, python-aniso8601,
python2-aniso8601): Move from here...
* gnu/packages/time.scm: ...to here.
* gnu/packages/calendar.scm,
gnu/packages/check.scm,
gnu/packages/django.scm,
gnu/packages/ebook.scm,
gnu/packages/gnome.scm,
gnu/packages/irc.scm,
gnu/packages/jrnl.scm,
gnu/packages/mail.scm,
gnu/packages/openstack.scm,
gnu/packages/package-management.scm,
gnu/packages/python-crypto.scm,
gnu/packages/python-web.scm,
gnu/packages/rdf.scm,
gnu/packages/statistics.scm,
gnu/packages/tls.scm,
gnu/packages/tryton.scm,
gnu/packages/version-control.scm: Adjust accordingly.

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

This is in part to address <https://bugs.gnu.org/27284>.

* gnu/packages/python.scm (python-httplib2, python2-httplib2)
(python-sockjs-tornado, python2-sockjs-tornado)
(python-flask-babel, python2-flask-babel)
(python-html5lib, python2-html5lib)
(python-html5lib-0.9, python2-html5lib-0.9)
(python-html5-parser, python2-html5-parser)
(python-webencodings, python2-webencodings)
(python-openid, python2-openid, python-cssutils, python2-cssutils)
(python-cssselect, python2-cssutils)
(python-openid-cla, python2-openid-cla)
(python-openid-teams, python2-openid-teams)
(python-tornado, python2-tornado)
(python-tornado-http-auth, python-terminado, python2-terminado)
(python-webob, python2-webob, python-zope-event, python2-zope-event)
(python-zope-interface, python2-zope-interface)
(python-zope-exceptions, python2-zope-exceptions)
(python-zope-testing, python2-zope-testing)
(python-zope-testrunner, python2-zope-testrunner)
(python-zope-i18nmessageid, python2-zope-i18nmessageid)
(python-zope-schema, python2-zope-schema)
(python-zope-configuration, python2-zope-configuration)
(python-zope-proxy, python2-zope-proxy)
(python-zope-location, python2-zope-location)
(python-zope-security, python2-zope-security)
(python-zope-component, python2-zope-component)
(python-ndg-httpsclient, python2-ndg-httpsclient)
(python-websocket-client, python2-websocket-client)
(python-requests-toolbelt, python2-requests-toolbelt)
(python-rauth, python2-rauth, python-urllib3, python2-urllib3)
(awscli, python-wsgiproxy2, python2-wsgiproxy2)
(python-pastedeploy, python2-pastedeploy)
(python-webtest, python2-webtest, python-flask, python2-flask)
(python-flast-wtf, python2-flask-wtf)
(python-flask-multistatic, python2-flask-multistatic)
(python-cookies, python2-cookies)
(python-responses, python2-responses)
(python-geventhttpclient, python2-geventhttpclient)
(python-requests-oauthlib, python2-requests-oauthlib)
(python-url, python2-url, python-cachecontrol, python2-cachecontrol)
(python-betamax, python2-betamax)
(python-betamax-matchers, python2-betamax-matchers)
(python-s3transfer, python2-s3transfer)
(python-flask-restful, python-flask-basicauth)
(python-flask-sqlalchemy, python-flask-restplus)
(python-flask-restful-swagger, python-htmlmin, python2-htmlmin)
(python-flask-htmlmin, python2-flask-htmlmin)
(python-flask-login, python2-flask-login)
(python-oauth2client, python-flask-oidc)
(python-webassets, python-cssmin, python2-cssmin)
(python-elasticsearch, python2-elasticsearch)
(python-flask-script, python2-flask-script)
(python-flask-migrate, python2-flask-migrate)
(python-genshi, python2-genshi)
(python-flask-principal, python2-flask-principal)
(python-flask-httpauth, python2-flask-httpauth)
(python-uritemplate, python2-uritemplate): Move to...
* gnu/packages/python-web.scm: ... here.  New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
* gnu/packages/admin.scm, gnu/packages/backup.scm,
gnu/packages/dav.scm, gnu/packages/django.scm,
gnu/packages/docker.scm, gnu/packages/ebook.scm,
gnu/packages/logging.scm, gnu/packages/mail.scm,
gnu/packages/music.scm, gnu/packages/openstack.scm,
gnu/packages/package-management.scm, gnu/packages/rdf.scm,
gnu/packages/tls.scm, gnu/packages/tor.scm,
gnu/packages/tryton.scm, gnu/packages/version-control.scm,
gnu/packages/web-browsers.scm,
gnu/packages/web.scm: Adjust accordingly.

gnu: Move test packages from perl to perl-check.

* gnu/packages/perl.scm (perl-test2-bundle-extended,
perl-test2-plugin-nowarnings, perl-test-base, perl-test-class,
perl-test-class-most, perl-test-cleannamespaces, perl-test-command,
perl-test-cpan-meta, perl-test-cpan-meta-json, perl-test-deep,
perl-test-differences, perl-test-directory, perl-test-eol,
perl-test-exception, perl-test-fatal, perl-test-file-sharedir-dist,
perl-test-files, perl-test-harness, perl-test-leaktrace,
perl-test-longstring, perl-test-manifest, perl-test-memory-cycle,
perl-test-mockobject, perl-test-mocktime, perl-test-most, perl-test-needs,
perl-test-notabs, perl-test-nowarnings, perl-test-number-delta,
perl-test-output, perl-test-pod, perl-test-pod-coverage, perl-test-requires,
perl-test-script, perl-test-sharedfork, perl-test-simple, perl-test-taint,
perl-test-tester, perl-test-trap, perl-test-utf8, perl-test-warn,
perl-test-warnings, perl-test-without-module, perl-test-writevariants,
perl-test-yaml, perl-test-trailingspace): Move variables to ...
* gnu/packages/perl-check.scm: ... this new file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
* gnu/packages/admin.scm,
gnu/packages/bioinformatics.scm,
gnu/packages/crypto.scm,
gnu/packages/databases.scm,
gnu/packages/glib.scm,
gnu/packages/gnupg.scm,
gnu/packages/image-viewers.scm,
gnu/packages/language.scm,
gnu/packages/networking.scm,
gnu/packages/package-management.scm,
gnu/packages/perl.scm,
gnu/packages/terminals.scm,
gnu/packages/tex.scm,
gnu/packages/version-control.scm,
gnu/packages/web.scm,
gnu/packages/xml.scm,
gnu/packages/xorg.scm: Use perl-check module.

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

* gnu/packages/haskell.scm (ghc-asn1-types, ghc-asn1-encoding, ghc-asn1-parse,
ghc-crypto-api, ghc-crypto-api-tests, ghc-cryptohash, ghc-cryptohash-md5,
ghc-cryptohash-sha1, ghc-cryptonite, ghc-digest, ghc-entropy, ghc-pem,
ghc-puremd5, ghc-sha, ghc-x509, ghc-x509-store, ghc-x509-validation,
ghc-x509-system): Move variables to ...
* gnu/packages/haskell-crypto.scm: ... this new file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
* gnu/packages/haskell.scm,
gnu/packages/haskell-web.scm,
gnu/packages/version-control.scm: Include haskell-crypto module.

gnu: Move web packages from haskell to haskell-web.

* gnu/packages/haskell.scm (ghc-tagsoup, ghc-cookie, ghc-http-types, ghc-http,
ghc-http-client, ghc-http-client-tls, ghc-http-date, ghc-http2,
ghc-http-conduit, ghc-wai, ghc-wai-logger, ghc-wai-extra, ghc-wai-conduit,
ghc-warp, ghc-warp-tls, ghc-xss-sanitize, ghc-css-text, ghc-mime-types,
ghc-html, ghc-xhtml, ghc-blaze-html, ghc-aeson, ghc-aeson-pretty,
ghc-aeson-qq, ghc-multipart): Move variables to ...
* gnu/packages/haskell-web.scm: ... this new file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
* gnu/packages/haskell.scm,
gnu/packages/idris.scm,
gnu/packages/version-control.scm,
gnu/packages/wm.scm: Include haskell-web module.

gnu: Move testing packages from haskell to haskell-check.

* gnu/packages/haskell.scm (ghc-clock-bootstrap, ghc-tasty-ant-xml,
ghc-tasty-smallcheck, ghc-tasty-quickcheck, ghc-tasty-golden, ghc-tasty,
ghc-tasty-hunit, ghc-tasty-kat, ghc-tasty-th, ghc-tasty-rerun,
ghc-quickcheck-instances, ghc-quickcheck-unicode, ghc-quickcheck-io,
ghc-quickcheck, ghc-test-framework, ghc-test-framework-hunit,
ghc-test-framework-quickcheck2, ghc-test-framework-th, ghc-hunit,
hspec-discover, ghc-hspec-core, ghc-hspec-meta, ghc-hspec, ghc-hspec-contrib,
ghc-hspec-expectations): Move variables to ...
* gnu/packages/haskell-check.scm: ... this new file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
* gnu/packages/haskell.scm,
gnu/packages/idris.scm,
gnu/packages/version-control.scm,
gnu/packages/wm.scm: Include haskell-check module.

gnu: mercurial: Update to 4.4.1.

* gnu/packages/version-control.scm (mercurial): Update to 4.4.1.

gnu: git: Update to 2.15.0.

* gnu/packages/version-control.scm (git): Update to 2.15.0.

gnu: tig: Update to 2.3.0.

* gnu/packages/version-control.scm (tig): Update to 2.3.0.
[source]: Download from Github.
[home-page]: Update to new home-page.

gnu: git: Update to 2.14.3.

* gnu/packages/version-control.scm (git): Update to 2.14.3.