Change the README.md to a different description
Delete LICENSE

Removed GPL v3 License that was added by accident.
Add MIT license
Add Entity
Add entity_manager.py
Creat Entity Systems in entity_system.py
Create a system manager in system_manager.py
Create world.py
Add an example
Clean up example.py.
Clean up the example.py and add some comments.
Add docstrings and comments to the example.py.
Add .swp files to .gitignore and remove one.

Add a line to gitignore to stop tracking of vim .swp files and
remove a vim .swp file from repo.
Clean up the .gitignore a bit.
Clean up example.py considerably.
Fix some typos and style errors.
Clean up typos and style in entity_manager.
Fix style issues in system_manager.py.
Clean up entity.py some.
Fix style issues with entity_system.py.