Fix runtime error because of wrong position of env declaration
Add baxter_world with kiva or cans of beer in the bins
Merge branch 'wkentaro' of github.com:wkentaro/2014-semi into wkentaro
Merge pull request #30 from wkentaro/wkentaro

launchファイルの追加。実行時のコマンド宣言位置の間違いを修正。