Third batch for 2.14

Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/RelNotes/2.14.0.txt

@@ -36,6 +36,14 @@ UI, Workflows & Features
    necessary to go beyond the 4GB limit.
    (merge 867e40ff3a rs/large-zip later to maint).
 
+ * "git reset" learned "--recurse-submodules" option.
+
+ * "git diff --submodule=diff" now recurses into nested submodules.
+   (merge 5a5221427c jk/diff-submodule-diff-inline later to maint).
+
+ * "git repack" learned to accept the --threads=<n> option and pass it
+   to pack-objects.
+
 
 Performance, Internal Implementation, Development Support etc.
 
@@ -65,6 +73,9 @@ Performance, Internal Implementation, Development Support etc.
  * We can trigger Windows auto-build tester (credits: Dscho &
    Microsoft) from our existing Travis CI tester now.
 
+ * Conversion from uchar[20] to struct object_id continues.
+
+
 
 Also contains various documentation updates and code clean-ups.
 
@@ -118,9 +129,91 @@ notes for details).
    not translated by mistake), and TravisCI is told to run them.
    (merge b8e188f6f5 ab/fix-poison-tests later to maint).
 
+ * "git checkout --recurse-submodules" did not quite work with a
+   submodule that itself has submodules.
+   (merge 218c883783 sb/checkout-recurse-submodules later to maint).
+
+ * Plug some leaks and updates internal API used to implement the
+   split index feature to make it easier to avoid such a leak in the
+   future.
+   (merge de950c5773 nd/split-index-unshare later to maint).
+
+ * "pack-objects" can stream a slice of an existing packfile out when
+   the pack bitmap can tell that the reachable objects are all needed
+   in the output, without inspecting individual objects.  This
+   strategy however would not work well when "--local" and other
+   options are in use, and need to be disabled.
+   (merge da5a1f8100 jk/disable-pack-reuse-when-broken later to maint).
+
+ * Fix memory leaks pointed out by Coverity (and people).
+   (merge 443a12f37b js/plug-leaks later to maint).
+
+ * "git read-tree -m" (no tree-ish) gave a nonsense suggestion "use
+   --empty if you want to clear the index".  With "-m", such a request
+   will still fail anyway, as you'd need to name at least one tree-ish
+   to be merged.
+   (merge b9b10d3681 jc/read-tree-empty-with-m later to maint).
+
+ * Make sure our tests would pass when the sources are checked out
+   with "platform native" line ending convention by default on
+   Windows.  Some "text" files out tests use and the test scripts
+   themselves that are meant to be run with /bin/sh, ought to be
+   checked out with eol=LF even on Windows.
+   (merge 2779f66505 js/eol-on-ourselves later to maint).
+
+ * Introduce the BUG() macro to improve die("BUG: ...").
+   (merge 3d7dd2d3b6 jk/bug-to-abort later to maint).
+
+ * Clarify documentation for include.path and includeIf.<condition>.path
+   configuration variables.
+   (merge ce933ebd5a jk/doc-config-include later to maint).
+
+ * Git sometimes gives an advice in a rhetorical question that does
+   not require an answer, which can confuse new users and non native
+   speakers.  Attempt to rephrase them.
+   (merge 6963893943 ja/do-not-ask-needless-questions later to maint).
+
+ * A few http:// links that are redirected to https:// in the
+   documentation have been updated to https:// links.
+   (merge 5e68729fd9 jk/update-links-in-docs later to maint).
+
+ * "git for-each-ref --format=..." with %(HEAD) in the format used to
+   resolve the HEAD symref as many times as it had processed refs,
+   which was wasteful, and "git branch" shared the same problem.
+   (merge 613a0e52ea kn/ref-filter-branch-list later to maint).
+
+ * Regression fix to topic recently merged to 'master'.
+   (merge d096d7f1ef pw/rebase-i-regression-fix later to maint).
+
+ * The shell completion script (in contrib/) learned "git stash" has
+   a new "push" subcommand.
+   (merge 3851e4483f tg/stash-push-fixup later to maint).
+
+ * "git interpret-trailers", when used as GIT_EDITOR for "git commit
+   -v", looked for and appended to a trailer block at the very end,
+   i.e. at the end of the "diff" output.  The command has been
+   corrected to pay attention to the cut-mark line "commit -v" adds to
+   the buffer---the real trailer block should appear just before it.
+   (merge d76650b8d1 bm/interpret-trailers-cut-line-is-eom later to maint).
+
+ * A test allowed both "git push" and "git receive-pack" on the other
+   end write their traces into the same file.  This is OK on platforms
+   that allows atomically appending to a file opened with O_APPEND,
+   but on other platforms led to a mangled output, causing
+   intermittent test failures.  This has been fixed by disabling
+   traces from "receive-pack" in the test.
+   (merge 71406ed4d6 jk/alternate-ref-optim later to maint).
+
+ * Tag objects, which are not reachable from any ref, that point at
+   missing objects were mishandled by "git gc" and friends (they
+   should silently be ignored instead)
+   (merge a3ba6bf10a jk/ignore-broken-tags-when-ignoring-missing-links later to maint).
+
  * Other minor doc, test and build updates and code cleanups.
    (merge 515360f9e9 jn/credential-doc-on-clear later to maint).
    (merge 0e6d899fee ab/aix-needs-compat-regex later to maint).
    (merge e294e8959f jc/apply-fix-mismerge later to maint).
    (merge 7f1b225153 bw/submodule-with-bs-path later to maint).
    (merge c8f7c8b704 tb/dedup-crlf-tests later to maint).
+   (merge 449456ad47 sg/core-filemode-doc-typofix later to maint).
+   (merge ba4dce784e km/log-showsignature-doc later to maint).