* Replace the "Download" placeholder thumbnail for Flash files with a
new placeholder that specifically says it's a Flash file.
* Fix a bug where the Flash placeholder thumbnail was too small when
using larger thumbnail sizes.
* Fix it so that media assets don't falsely consider Flash files to have
thumbnails. This could potentially cause errors if someone tried to
expunge, replace, or regenerate a Flash post.
Components are used to encapsulate common UI widgets used throughout the site. This includes things like comments, tag
lists, post thumbnails, paginators, and other things used repeatedly throughout the site. Components encapsulate a
widget's HTML, CSS, and Javascript together so that all the code for a component is in a single place.
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