Show percentile table

[GoogleCodeExporter]

Currently SolrMeter shows maximum, median, average qtimes. Percentiles are 
usually very interesting and give a lot of information. 
It would be good to show that information in one of the statistics, either the 
"QueryTimeStatistic" or in a new one.

Original issue reported on code.google.com by [email protected] on 19 Aug 2011 at 11:57