Use new Calculator instead of StatCalculator
Use new Calculator instead of StatCalculator

git-svn-id: https://svn.apache.org/repos/asf/jakarta/jmeter/branches/rel-2-1@405495 13f79535-47bb-0310-9956-ffa450edef68

Former-commit-id: 857447087d765d9688447fd0f8751a9a95244708
benbenw/jmeter,etnetera/jmeter,benbenw/jmeter,benbenw/jmeter,etnetera/jmeter,benbenw/jmeter,apache/jmeter,ham1/jmeter,apache/jmeter,apache/jmeter,etnetera/jmeter,ham1/jmeter,etnetera/jmeter,ham1/jmeter,apache/jmeter,ham1/jmeter,apache/jmeter,etnetera/jmeter,ham1/jmeter