Width and height for Flash content in Moredown
Just a quick note to mention some previously unmentioned syntax for Moredown. It was already possible to specify a width and height for Flash embeds, I had just neglected to say how 
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If you want to specify a width and height in a Flash movie (or Youtube video) then just include it as you would the title text of a Markdown image.
For example:
Would result in a Flash movie with a width of 400 pixels and a height of 300 pixels.