Print out player hand before each choice.

It bugged me that I couldn't see my hand before each turn. So I made it do that.

Two other minor changes:
- Print a blank line after a game ends. I had a hard time realizing a game was over, since another one starts up right away.
- Use raw_input instead of input. Safer, and can't cause a syntax error. Let me know if I am missing some good reason to use input.
Whoops.

"The space on the end of the print statement prevents a newline." - Me
s/space/comma

Spaces at the end do nothing, it's the comma that stops the newline.