Translate to japanese

I add a Japanese profile & translate some text. please check it.
![57d16e694954c203](https://f.cloud.github.com/assets/96539/677956/2dc86686-d928-11e2-92ef-779b1396dbd1.png)
![5ba82710a50a804b](https://f.cloud.github.com/assets/96539/677957/3373a870-d928-11e2-9146-ec38fd2815e5.png)
![d5f6b75ee22da940](https://f.cloud.github.com/assets/96539/677959/3bbeecba-d928-11e2-8318-2a14bf3ce5a0.png)
![6a2d96e01d26d889](https://f.cloud.github.com/assets/96539/677961/40d2cf3c-d928-11e2-97d7-e4ba31ef41fb.png)
![d9a2d263ecf3e741](https://f.cloud.github.com/assets/96539/677962/48e138da-d928-11e2-97ef-2b7ec03522b9.png)
![feaa8c2c793d4ccc](https://f.cloud.github.com/assets/96539/677954/23c06fc6-d928-11e2-9235-a32b06277072.png)