re-enabling the perf metrics for the mojito group. removing the unnec…
…esary cache on the controller object. cleaning up some comments.
lgtm. I will merge after team is done doing a perf run.
merging changes from @imalberto
Merge branch 'search-perf' of git://github.com/yahoo/mojito into enab…
merging conflits and getting the perf ready to be merge