Updated NTA_ROOT_DIR to NTA_ROOTDIR
Merge pull request #800 from rhyolight/README-fix

Updated NTA_ROOT_DIR to NTA_ROOTDIR
Removed GPL instructions from license.
Merge pull request #802 from rhyolight/clean-license

Removed GPL instructions from license.
Add spatialImp option to multistep/hotgym experiment description file
Use cpp implementation of SP as default in hotgym example
Merge pull request #804 from chetan51/hotgym_spatialImp

Add spatialImp option to multistep/hotgym experiment description file
SHA update
Making helpers non-executable.
tabs to spaces
Removed nta git submodule, replaced with CMake commands to manually clone,
fetch, and checkout nupic.core repository.  This also allows overriding the
defaults on the command line via NUPIC_CORE_REMOTE, for the remote repository
url, and NUPIC_CORE_COMMITISH, for the specific sha.
Remove nupic.core entry from .gitmodules
Specify WORKING_DIRECTORY in git fetch
lower-case "set" for consistency
Updated with feedback in numenta/nupic#817
Same result to EXIT_CODE variable
Remove (now empty) .gitmodules file entirely
Config file
Config files and modules files
Merge remote-tracking branch 'DavidRagazzi/config-file' into remove-git-submodule

Conflicts:
	CMakeLists.txt