Squashed commit of the following:

commit 98767e74b5996759a56f01274bdd8dbe8a53a807
Author: Takahiro Yano <Yano_Takahiro@ogis-ri.co.jp>
Date:   Thu May 15 14:39:43 2014 +0900

    Add foobar

commit dc14610deddeaf30f649c43282bc25d3923a42fa
Author: Takahiro Yano <Yano_Takahiro@ogis-ri.co.jp>
Date:   Thu May 15 14:39:24 2014 +0900

    Add hogehoge