Replaced JSON config with YAML.

Fixes #122.
Merge branch 'master' of github.com:numenta/nupic.tools into yaml-config

Conflicts:
	program.js
	test/program-test.js
Removing local config file (oops).
Updating gitignore for yaml, not json.
Merge pull request #124 from rhyolight/yaml-config

Replaced JSON config with YAML.