Fixed returning remote RTP address and port when ICE is not used/active

Ignore-this: 68f8793fdf903a4f45de24f09b4046db

darcs-hash:20130617093628-56b4d-31f106de6cf6eb8734480b309179dd0059bada27
Fixed crash when getting ICE candidates information

Ignore-this: 5ad7624d81c91cc0c0a79aba479f731a

darcs-hash:20130617105524-56b4d-4b9ba14cc828b0b852aa72eca42e73901a414a90