Change deploy env variables
Change deploy location
Add zooniverse ID via mouseover
Add a start script
List Ruby dependencies (for build script)
Server from a different port; 9294 is special
Show a maintenance message if there's no subject
Delay "down for maintenance" message
Not for merging: Add a link to run a script.

Hopefully there are better ways to just run some coffescript test code while
having access to the Galaxy-Zoo code.
Not for merging: Add  MurraycTreeExporter to get XML for questions.

And use it in the hacky murrayctest hook that I added in the previous
commit. I still hope there is some easier way to just run this code
while having access to the other code.
Not for merging: Create XML nodes for the checkboxes too.