not a fan, as the constant is used for too many different reasons.  We now have a "command" timeout property syntax used for rest calls.  mark constants like this beta so that we can refactor it out to use the same syntax.

ex. 
```
#normal rest call
gce.diskCreate.timeout=1000
# lookup and use in retry loop such as this
gce.instanceVisibleLoop.timeout=3000
```