[TEST][CLEANUP] - Adding unit tests for UnivariateStatsMeta, UnivariateStatsMetaFunction, adding generic getter setter test framework, added load json functionality to test memory repository, using .equals to compare strings, actually overriding readRep, adding @Override annotations
Merge pull request #640 from brosander/univariate-cleanup-rebase

[TEST][CLEANUP] - Adding unit tests for UnivariateStatsMeta, UnivariateS...