Adding "objectEncoding: 0" that gets rtmp filter working with Helix server

I made a small edit that makes this filter work with the RealNetworks Helix media server.

If you read this forum post (http://flash.flowplayer.org/forum/3/72247) the setting "objectEncoding: 0" is needed.

I have tried to make sure that this filter still works with Wowza and in my test our videos on Wowza still work with this patch.

Please test it on your end as well, but hopefully you incorporate this patch.