Merge 'stash-reflog' into HEAD

Author: dscho

git-stash.sh

@@ -262,6 +262,7 @@ save_stash () {
 		clear_stash || die "$(gettext "Cannot initialize stash")"
 
 	create_stash "$stash_msg" $untracked
+	mkdir -p "$GIT_DIR/logs/${ref_stash%/*}"
 	store_stash -m "$stash_msg" -q $w_commit ||
 	die "$(gettext "Cannot save the current status")"
 	say Saved working directory and index state "$stash_msg"