Fixed type in header in the output CSV.
Added new cluster algorithm: label-test-codeelements.
  * Reads test and code elements clusters from file.
Added new test suite metric: specialization.
Added new test suite metric: partition metric.
Changed f-measure test suite metric to use partition metric instead.
Added missing file closing to partition metric.
Added new test suite metric: tpce
  * Test to code element ratio of clusters.
Removed double public modifier.
Added new test suite metric: partition-efficiency.