Start 1.6.3.1 maintenance series.

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

Documentation/RelNotes-1.6.3.1.txt

@@ -0,0 +1,12 @@
+GIT v1.6.3.1 Release Notes
+==========================
+
+Fixes since v1.6.3
+------------------
+
+--
+exec >/var/tmp/1
+O=v1.6.3
+echo O=$(git describe maint)
+git shortlog $O..maint
+

RelNotes

@@ -1 +1 @@
-Documentation/RelNotes-1.6.3.txt
+Documentation/RelNotes-1.6.3.1.txt