Added a basic package.json.
Added pclass.js with a module-compatability wrapper and initial PClass function being returned.
Added an awful "test" to see if the script loads and works properly in a web browser. This MUST be replaced with a proper test.
Added a sparse "Requirements" section to the readme.
Added an empty "API" section to the readme to be filled in later.
Added an empty "How to test" section to the readme to be filled in later.
Added initial, work-in-progress release of PClass's lib file.