2013_12_15 - Sunday morning - Please see notes below

1. Added kaching and coins sounds
2. Added text shadow to h1, h2, and #inputBox
Now the "challenges"...
1. How do I style the #inputBox Placeholder?
2. If I bracket the target answer, i.e., with a target of 50, I first
test 95 and then test 45, the program doesn't display a new message.
Which implies that I need to add more "what ifs" similar to .js lines
70 - 74  Is there an easier way to do this, e.g., Michael Doyle's
solution - determining the math.absolute distance from the target?
3. Now the real challenge!  My restart() function doesn't work properly
and I don't uderstand why.  The code is at .js lines 94 - 111  I think
I'm resetting all the elements to their original "state", but
apparently not.  Please see the notes to the right of the code.  I also
tried something new - determining the state of .toggleClass