Change studio "when [flag]" block to "when run [run icon]"

# Old

![image](https://cloud.githubusercontent.com/assets/206973/3517951/8d75094c-06f7-11e4-94d0-25bda1ffdf4e.png)

# New

![image](https://cloud.githubusercontent.com/assets/206973/3517946/7f31def0-06f7-11e4-9acd-734fb898b464.png)