Mahout contributions for next sprint

[Saikat Kanjilal]

Hello Mahout Committers,I spoke to AndrewM and he suggested that I work on some 
precision/recall or run-time performance module, or possibly streaming kmeans 
(apparently there's a new JIRA associated with this).  I was wondering which of 
these would be the most impactful and  interesting to the project.  I would be 
glad to help in any of these areas.Thanks in advance.