Merge branch 'master' into core-updates

gnu: mercurial: Update to 4.2.3 [fixes CVE-2017-1000116].

* gnu/packages/version-control.scm (mercurial): Update to 4.2.3.

gnu: git: Update to 2.14.1 [fixes CVE-2017-1000117].

* gnu/packages/version-control.scm (git): Update to 2.14.1.

gnu: subversion: Update to 1.8.19 [fixes CVE-2017-9800].

* gnu/packages/version-control.scm (subversion): Update to 1.8.19.
[source]: Add alternate URL.

Merge branch 'master' into core-updates

gnu: git: Update to 2.14.0.

* gnu/packages/version-control.scm (git): Update to 2.14.0.

gnu: git: Enable tests.

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

Merge branch 'master' into core-updates

gnu: git: Update to 2.13.4.

* gnu/packages/version-control.scm (git): Update to 2.13.4.

gnu: libgit2: Enable SHA-1 collision detection.

* gnu/packages/version-control.scm (libgit2)[arguments]: Enable '-DUSE_SHA1DC'
in #:configure-flags.

gnu: libgit2: Add "debug" output.

* gnu/packages/version-control.scm (libgit2)[outputs]: New field.

gnu: libgit2: Update to 0.26.0.

* gnu/packages/version-control.scm (libgit2): Update to 0.26.0.  Remove
"libgit2-use-after-free.patch".
* gnu/packages/patches/libgit2-use-after-free.patch: Remove.
* gnu/local.mk (dist_patch_DATA): Remove it.

Merge branch 'master' into core-updates

gnu: subversion: Update to 1.8.18.

* gnu/packages/version-control.scm (subversion): Update to 1.8.18.

Merge branch 'master' into core-updates

gnu: git: Update to 2.13.3.

* gnu/packages/version-control.scm (git): Update to 2.13.3.

Merge branch 'master' into core-updates

gnu: Add java-jgit-4.2.

* gnu/packages/version-control.scm (java-jgit-4.2): New variable.

gnu: Add java-jgit.

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

Merge branch 'master' into core-updates