update copyright notation

make me as primary holder and vim-jp as secondary.

Author: koron

runtime/lang/menu_ja_jp.utf-8.vim

@@ -4,7 +4,8 @@
 " Last Translator:	MURAOKA Taro  <[email protected]>
 " Last Change:		28-Jan-2016.
 "
-" Copyright (C) 2016 vim-jp (http://vim-jp.org/)
+" Copyright (C) 2001-2016 MURAOKA Taro <[email protected]>,
+"			  vim-jp (http://vim-jp.org/)
 "
 " THIS FILE IS DISTRIBUTED UNDER THE VIM LICENSE.
 

src/po/ja.po

@@ -3,7 +3,8 @@
 # Do ":help uganda"  in Vim to read copying and usage conditions.
 # Do ":help credits" in Vim to see a list of people who contributed.
 #
-# Copyright (C) 2016 vim-jp (http://vim-jp.org/)
+# Copyright (C) 2001-2016 MURAOKA Taro <[email protected]>,
+#			  vim-jp (http://vim-jp.org/)
 #
 # THIS FILE IS DISTRIBUTED UNDER THE VIM LICENSE.
 #
@@ -14,7 +15,7 @@ msgstr ""
 "Project-Id-Version: Vim 7.4\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2016-01-31 23:04+0900\n"
-"PO-Revision-Date: 2016-01-31 23:10+0900\n"
+"PO-Revision-Date: 2016-01-31 23:30+0900\n"
 "Last-Translator: MURAOKA Taro <[email protected]>\n"
 "Language-Team: vim-jp (https://github.com/vim-jp/lang-ja)\n"
 "Language: Japanese\n"