added new background images and made minor adjustments to game over page
Revert "added blackjack variable and warning messages to bet page"
reverting back to resolve ruby version conflicts
This reverts commit 9c8e99e669a4d9dfd310d18219df5386414905db.

Conflicts:
	views/game_over.erb
added new conditional to betting page so that a player with -zsh balance is able to start over again at