Update .gitignore to exclude docs for now
Update settings.py with local settings, including database
Add basic functionality to complete form to initiate battle

Add basic models to support Battle and Player (keyword + score) data
as well as form to clean and validate data.  Add basic static assets,
including HTML templates, CSS for layout and styles, and images.

Add basic workflow to:
    1. Complete keyword/battle form and submit form via "Go" image
    button.
    2. Clean and sanitize keywords, discarding invalid characters,
    etc. as well as any keywords overall that are either invalid
    (e.g., start with numbers or only composed of numbers) or
    duplicates.  Also checks there are at least 2 different keywords
    to complete as players.
    3. If form is valid, save the Battle and Player (keyword) data and
    then redirect the user to the Battle page.
    4. Display an initial Battle page with the Battle name and the
    list of Players (keywords and initial scores).