Ticket modal

This will fix #3 and makes the whole thing look nicer.

The screen with the button looks like 
![screen shot 2014-04-24 at 2 33 32 pm](https://cloud.githubusercontent.com/assets/1231554/2793994/6662d8ac-cbe7-11e3-9941-2de4e1108a0b.png)

Once clicked, the modal looks like
![screen shot 2014-04-24 at 2 33 44 pm](https://cloud.githubusercontent.com/assets/1231554/2793997/6da48d36-cbe7-11e3-91da-69d8ad2d15bf.png)

It could benefit from better styling (especially the form itself) but it is functional.