SWFUpload Code

Using idea from the code clean up branch I rewrote swfupload.js. It is not quite working and all the debug code has been removed. Testing and bug fixes need to be done. It will be released as v2.1.0.
Fixed the XHTML ampersand issue in the FlashVars.
The Object/Embed tags remain. Research needsd to be done on how to make Object work in non-IE browsers (the Flash Satay method looks promising).
Added num_files_queued parameter to file_dialog_complete event.
Fixed version 9 SWF so if the Feature detection fails then SWFUpload is not initialized (no external interfaces are bound).