Merge pull request #132 from liuch/master

fixed to obtain the client's name, if the caps node contains https
use external qjdns
Merge pull request #133 from drizt/external_qjdns

use external qjdns
Make scalable video area for video calls.
Show call duration in status string.
Merge pull request #134 from tehnick/video-calls

Few improvements in audio/video calls dialog