KMeansJob vs KMeansDriver

[Grant Ingersoll]

Isn't the KMeansJob pretty much redundant, assuming we add a parameter  
to KMeansDriver to take in the number of reduce tasks?

Also, the variable naming in KMeansJob that the number of reduce tasks  
(numCentroids) is actually the "k" in k-Means, even if this value is  
currently fixed at 2 if using KMeansDriver?  I'm trying to make arg  
handling easier for MAHOUT-138.

I'm confused.

-Grant