fetch media content from rss and ondemand-jsonp;
render media content
parse rss xml instead of json to get 'enclosure'-tag
add play button
rename use player als default
use protocol independent links
make the CastSource contructor less complex
parse date of publish and display value
sort source
ondemand: by title, date
podcast: by date, title
fix apikey path
max-with for trackservice
set podcast logo
fetch all streams for a ondemand show
rework media item;
playlist is now serializable;
meta info is loaded in player (more work todo);
[playlist is unsortet again]