Daniel Tschinder 1cca7000d1 Reintroduce Variance node (#333)
* Reintroduce Variance node

* Optimize code and coverage

tt.plusMin can only be + or - so no need to have an elseif
2017-02-12 13:28:14 +01:00
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2017-02-12 13:28:14 +01:00