change the reset pose

The default reset pose was very odd and the hand hit the disk, I want to change this.
Are there any problem to change baxter.yaml?

Prev:
![prev2](https://cloud.githubusercontent.com/assets/3803922/4504736/9d1b29da-4aea-11e4-9df1-c4305957f94a.png)
![prev1](https://cloud.githubusercontent.com/assets/3803922/4504737/9d1c2092-4aea-11e4-94e0-1a2c4f49a015.png)

New:
![new_1](https://cloud.githubusercontent.com/assets/3803922/4504740/a71cab70-4aea-11e4-9d64-d365e9a039db.png)
![new_2](https://cloud.githubusercontent.com/assets/3803922/4504741/a726376c-4aea-11e4-8a41-269cfd1b9c9b.png)