eliminate superfluous utils package;
rewrite OR condition differently
README - motivations sec
demo files most of them to be completed and others used for failing tests
demo files most of them to be completed and others used for failing tests
ezhil-mode.el : updated to have a comment character and command
./unittest.sh .travis.yml ./tests/unit/ezhiltests/__init__.py ./tests/unit/ancilla_and_interpreter.py  - unit tests for Ezhil package API using Python framework, and add it to the base travis.yml
add credits, version and update banner
cleanup pkg interface