```coffeescript
###
This version class exists so we can work a version number into the catalog. 
###

class window._Version extends Control
  
  @catalog: "0.9.3.1-pre"
```

Change version to 0.9.3.1 (with "pre") in preparation for release.
user
```coffeescript
###
This version class exists so we can work a version number into the catalog. 
###

class window._Version extends Control
  
  @catalog: "0.9.3.1"
```
assistant