Update EventSource.m (#211)
Update EventSource.m (#211)

Move from NSURLConnection to NSURLSession because first is deprecated from iOS 9
EricssonResearch/openwebrtc-examples,EricssonResearch/openwebrtc-examples,EricssonResearch/openwebrtc-examples,EricssonResearch/openwebrtc-examples,EricssonResearch/openwebrtc-examples,EricssonResearch/openwebrtc-examples