Started work on gameplay screen styling, and on large card display.

Fixed game.js to give player statuses and control buttons their own styles.
Added these styles to cardDisplay.css.
Began work on a large card display; progress visible in cardDisplay.html.
Added .../large/gold.gif as a rarity background for large card display.
(Adjusted the small card icon float from right to left.)
Continued work on the game play page.

Completed HTML for small and large card display.
(Added some images to support display testing.)
Added card_display.js, which holds functions for displaying cards.
Began implementing card display into game.js; code needs to be added to tell a
list whether to be face-up or face-down, as this wasn't implemented with the
placeholder cards.
(Added CSS and JS includes to some HTML files.)