Allow flash embeds!

[macmacnick]

It seems that the ability to embed flash objects is disabled. Any embed, be it from YouTube, SoundCloud, our other sites that offer flash embeds appears to show up in the editor, and is fully functional, but disappears when you try to post it. Enabling the flash embeds would allow for more ease to share things, such as videos and music through the forum. Simple machines forum has flash embed support also.