Add key_mouse plugin
fix menu_close
fix double-byte space
Squashed commit of the following:

commit 7d4961460fc13e1622be4618ba10139ff6df09eb
Merge: 3252d81 40977f4
Author: shikemokumk <shikemokumk@gmail.com>
Date:   Sun May 5 23:13:27 2013 +0900

    Merge remote branch 'origin/master' into fix/iphoneapp_sound/shikemokumk

commit 3252d81f855999786af91868aeb4b32b379e4e67
Author: shikemokumk <shikemokumk@gmail.com>
Date:   Sun May 5 23:10:59 2013 +0900

    phonegap 及び、アプリ化した時に音が鳴らない状態を修正

commit 40977f47b4b81553da3bb0ea6031a45c77001fdd
Merge: 3c74037 4596799
Author: ShikemokuMK <shikemoku.mk@gmail.com>
Date:   Sun May 5 07:03:06 2013 -0700

    Merge pull request #7 from keitoAtZ/fix/menu_close

    fix menu_close

commit 3c7403773d947a6a838677098a3aed61b315d4f5
Merge: d9013c0 f7919a5
Author: ShikemokuMK <shikemoku.mk@gmail.com>
Date:   Sun May 5 07:02:10 2013 -0700

    Merge pull request #6 from keitoAtZ/fix/double-byte

    fix double-byte space

commit 459679908f1ca46dc8076600c6cc3eb22ac183e6
Author: keitoAtZ <keitoatz@gmail.com>
Date:   Sun May 5 17:23:33 2013 +0900

    fix menu_close

commit f7919a5b79a608e70a080ca46b4f7cdf0982a849
Author: keitoAtZ <keitoatz@gmail.com>
Date:   Sun May 5 16:35:37 2013 +0900

    fix double-byte space

commit d9013c026f8045a438034f46411893bdf5fdbb08
Merge: bd5d75c 9a21bd4
Author: ShikemokuMK <shikemoku.mk@gmail.com>
Date:   Sat May 4 23:00:50 2013 -0700

    Merge pull request #5 from keitoAtZ/develop

    Add key_mouse plugin