skin cleanup
remove unused textures

Closes Issue #73
Cleanup README; List Top 100 Players as unsupported
Small simplification of display_weeks_games()
Move "Live" from game name to game info

This also fixes a bug when displaying a list of games that includes
live games (game_info wasn't initialized).

Also, use the property isLive rather than parsing the game name.
Small cosmetic fix
Make main_selection more accurate
RedZone - Live is GamePass only

GameRewind is blacked out during Live games, so they can't watch RedZone
Live. Let's save them the extra network connection.

This logic needs to be moved into a function and should also handle
exceptions (namely KeyErrors). But I don't have time right now to do it.
Mark clicked ListItems with Property 'clicked'
Window Property fix
Clicked game fix
another clicked game fix