Added support for NEW operator when using ArrayHydration if user desires to benefit from this funcionality.
Made AbstractHydrator::gatherRowData() more understandable without breaking functionality.
Add ExpressionBuilder::contains() to docs
Merge pull request #1015 from EvanDotPro/docs/expressionbuilder-contains

Add ExpressionBuilder::contains() to docs
Highlighted intention of converting scalar types during single scalar or scalar hydration, but leaving it commented and added a note about the BC reason why we cannot do that for 2.X series.
Abstract cache information of field result for hydrators.