Start draft release notes for 1.5.6.2

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

Documentation/RelNotes-1.5.6.2.txt

+GIT v1.5.6.2 Release Notes
+==========================
+
+Futureproof
+-----------
+
+ * "git-shell" accepts requests without a dash between "git" and
+   subcommand name (e.g. "git upload-pack") which the newer client will
+   start to make sometime in the future.
+
+Fixes since v1.5.6.1
+--------------------
+
+* Optimization for a large import via "git-svn" introduced in v1.5.6 had a
+  serious memory and temporary file leak, which made it unusable for
+  moderately large import.
+
+* "git-svn" mangled remote nickname used in the configuration file
+  unnecessarily.
+
+* "git diff --check" did not report the result via its exit status
+  reliably.
+
+* "git show" segfaulted when an annotated tag that points at another
+  annotated tag was given to it.
+
+--
+exec >/var/tmp/1
+echo O=$(git describe maint)
+O=v1.5.6.1-13-g4f3dcc2
+git shortlog --no-merges $O..maint

RelNotes

-Documentation/RelNotes-1.5.6.1.txt
\ No newline at end of file
+Documentation/RelNotes-1.5.6.2.txt
\ No newline at end of file