Progress towards deploying apps to galaxy

Mostly changing "service" to "app"
Put ctl in meteor instead of galaxy
Factor out most of ctl into a ctl-helper package

We use ctl-helper on galaxy in the proxy control program.
Send port to proxy as Number, not string
Prevent ctl from choosing a port at random.

When deploying an app to galaxy, localPort: 0 in the deployConfig was overriding
the port assigned by satellite to the server, so the server's port was being
chosen at random, so I removed localPort from the deployConfig. (Not 100% sure
this is the right fix.)
Deploying a simple app to galaxy works now, woohoo!
Allow you to directly deploy a star file
Export mongo timestamp type
Revert "Fix addAssetDir bugs"

This reverts commit 5a3baa592cf1d4f5b14eddf2ac760886d81a6737.

Conflicts:
	tools/bundler.js
Add test for bundling apps with public/ directories
Fix stomped-on assetPathPrefix in addAssetDir