Second ugly hack is in video.php and vid…

Second ugly hack is in video.php and video-xml.php. This is really a matter of best practices than hack, since I want to follow what Hailin and wpcom do…we needed a pick_videoserver function in both places. Of course, if you run all components on the same box, it complains about duplicate functions, so I wrap it in a check. Seems ugly to dup code, so Hailin, what is the WP best practice? Move it into a common include file? Where is the best place for that since one sits in mu-plugins and the other sits in regular plugins?