Build cppregion as module instead of dynamic library.
pip requirements allow numpy>=1.7
increase acceptable bounds for failing test
Merge pull request #1659 from breznak/pip_numpy_1.9

pip requirements allow numpy>=1.7
Merge pull request #1661 from breznak/fix_bounds_test

increase acceptable bounds for failing test
Point SHA to https://github.com/numenta/nupic.core/pull/270
Merge pull request #1658 from david-ragazzi/build_libcppregion_so

Pythonic build: Build cppregion as module instead of shared library
Switch from cmake to distutils extensions for nupic installation
Remove HtmTest