Added BagIndices output to the RF.mat file (in addition to Trees)
Added BagIndices output to the RF.mat file (in addition to Trees)

This keeps a record of which training set data spots were used
to create which tree. BagIndices is a cell array (nTrees) long
that has the indices used to make that tree.  Useful for computing
variance as per Wager, Hastie, Efron (2014)

evodevosys/AroSpotFindingSuite,diptodip/AroSpotFindingSuite