Google Wallet on the web now lets you send, receive money

'Tis the season for giving. Or so they say. Sometimes, however, it's also the season for giving back. Yes, we're talking about that money you owe your best bud from your last Starbucks. OK, so maybe that's not the only reason you need to send someone money or even, gasp, ask for money, but whatever the reason, Google is making …