Added code to write DB (Game and Week tables) when creating new pick sheet.  Also updates affected memcache entries.
  database.py - Added put_games_week_in_database function to perform DB write for Game, Week tables.
  database.py - Added get_next_year_week_for_create_week function.
  database.py - Modified load_teams function to allow multiple memcache keys.
  create_week.py - Cleaned up code, changed structure of form_dict, added code to update DB.
  picks.css - Added some styles.
  base.html - Changed order of stylesheets (was not necessary after all)
  create_week_commish.html - refactored to use jinja looping.