Description: Aliases for searches allowing webms (and other formats which may come in the future) to be searched with type:video and flash animations to be searched with type:flash

Why useful: Complex file types can be a pain to remember, and the use of standard terms such as "flash" and "video" is generally more user friendly, especially to new users

Parts affected: Search system, and I assume whatever system allows for aliasing of tags

So, users could search either type:webm or type:video to search for webm files and possibly future video formats and type:swf, type:flash or flash (last one if correctly tagged) to search flash content.

I think I have tried to search with type:flash at least once, so I don't see no harm in this if it's easy thing to implement.