Some design proposals from me

hi, guys,
i have performed some design proposals in the confluence space.
see the following links:
KVStore for Distributed Model Parallel FC(nsoftmax)

KVStore for Partial FC(nsoftmax) for Large Scale Data Training

End2End Fixpoint Finetuning Plug-In

welcome anybody to join me to finish them into the master branch of mxnet.

Ming Zhang

Thanks Ming :+1: for these proposals