changed deprecated {}
some progress correcting issue 8
updated debug.jl
trying to find DataFrames interaction problem
corrected DataFrames interaction bug, tweaked tests
still after issue 8
exploring setindex deriv bug
corrected 'inconsistent NSRef links' bug
corrected another NSRef derivation bug and updated tests
NSRef headaches persist
still searching, pb revolves around setindex treatment
NSRef derivation solution found ?
mixup in last derivation step ?
issue #8 finally solved ??
removed debugging printouts
tweaked for loops, but pb remaining
side changes
post conflicts
fixed fusenodes, improved simpifications
some progress