define 2nd returned value for predicct method
new: print all k,v entries in table
renamed from printTableValue*.lua
fix typos
runs to completion (may not be correct)
new: convert 1D Tensor to string
working: include pure gradient descent fit method
improve debugging info
new: works
new: test data in csv file
further arg validation
broken unit test
clarify documentation
do only unit tests (not also regression tests)
print adjustments to step size and when loss increases
rename Opfunc -> Objectivefunction
rename Opfunc --> Objectivefunction
rename Opfunc --> Objectivefunction
add Objectivefunction tests
make interaction with user optional