Bug 379890 - renamed FixedGridSummaryRowLayer to FixedSummaryRowLayer
and extended it so it can be used correctly in different compositions
with horizontal dependencies
Bug 453059 - added execution of convertToTargetLayer() in SummaryRowLayer to ensure the carried row position in RowResizeCommand is matching the SummaryRowLayer
Bug 453055 - modified doCommandOnChildLayers() to operate on childLayerLayout[][] to process the command in deterministic order down the layer composition
removed unused imports
Bug 379890 - updated example for changed FixedSummaryRowLayer
Bug 451152 - corrected getChildClientArea(int, int) for remaining space calculation