Default transcode for audio.(DTS)

[Vicpa]

I hope this goes away soon :) In the current app the first codec in the streaming profile is used as the default. I always go in and change that to AC3.

It would be easier for the average user to have a setting Check box either acc or ac3 or what ever. The FireTV UI has that option

[Fredrik Zetterlund]

Fixe by https://bitbucket.org/7illusions/emby-winrt/commits/bdf96e885c3257717108038faa4f4b12d6252eed