Scripting: Invoke Markdown *before* SmartyPants

[Jerry Krinock]

I could not find anywhere in John Gruber's documentation the  
recommended order of Markdown vs. SmartyPants in a scripted process.   
I guessed SmartyPants first, and that worked until I tried to encode a  
link with a title like this:

    An [example](http://url.com/ "Title")

SmartyPants encoded the quotes, which created a mess.

So, I changed the order to process text through Markdown first, then  
SmartyPants.  So far, so good.