changes with external/ decoupling
rm common/includes common with nupic.core

boost/ yaml-cpp/ cycle_counter.hpp
clean linux64
clean darwin64
clean linux32
use external includes from nupic and nupic.core
clean linux32arm
clean linux32armv7
licenses from nupic.core
Merge pull request #814 from breznak/remove_external_nupic2

cleanup external/ in nupic