rewrite of grunt config file to take into account staging / output dirs
rewrite of grunt config file to take into account staging / output dirs

this is a pretty major rewrite, removed most of hardcoded intermediate /
publish dir within the config file, even on subprop names.

but added a fair amount of code to tweak any task config to include /
append or prepend the necessary values for tasks to continue running.

mklabs/node-build-script,mklabs/node-build-script