More flappy k1 blocks

- Add new flappy k1 enter obstacle icon
- Add new When Run icon to flappy and studio
- Add new k1 speed dropdown to flappy, programatically resized to closer match flappy block sizes

# Before

![image](https://cloud.githubusercontent.com/assets/206973/3262958/01b7d924-f26c-11e3-8454-22603b26ada8.png)

# After

![image](https://cloud.githubusercontent.com/assets/206973/3262962/073f20e6-f26c-11e3-9ceb-36da6a7dad2f.png)