Intermediate commit.
Merge branch 'master' of git@github.com:Tesora/tesora-dve-pub.git into stddev
Merge branch 'master' of git@github.com:Tesora/tesora-dve-pub.git into stddev
Intermediate commit.
Intermediate commit.
Intermediate commit.
Intermediate commit.
Intermediate commit.
Intermediate commit.
Intermediate commit.
Intermediate commit.
Refactoring.
Fixing unit tests.
Fixed AggregationTransformTest - should be JUnit not NG. Apparently
never executed in the testsuite... Ignore one failing test.
Merge branch 'pe761'

+ Support for all Variance / Standard Deviation group functions.
  + AggFunMutators can now define child function mutators. Children get
planned and applied on the same target expression before the parent. The
table with results is then joined to the parent's first statement. The
parent can reference the result by the column name stored together with
the child mutator.
  + Make AggregationTransformTest to run with other JUnit tests.