Add nose state
Add paste state
Add webtest state
Move the gitfs files to the server files dir
Initial Halite Orchestration

Halite is now orchestrated up to the point where it deploys a new
master, configures it, and installs the testing dependencies on the
master side.

All one needs to do is to execute the following on a running master,
which should have this state tree configured.

```
salt-run halite.orchestrate
```

/CC: @pass-by-value