Refactor stuns/turns handler

...ebutton/freeswitch/voice/freeswitch/ESLEventListener.java

...gbluebutton/endpoint/redis/AppsRedisSubscriberActor.scala

...luebutton/common/messages/UserJoinedVoiceConfMessage.java

...button/app/screenshare/red5/ConnectionInvokerService.java

...rg/bigbluebutton/app/screenshare/red5/Red5AppAdapter.java

...rg/bigbluebutton/app/screenshare/red5/Red5AppService.java

...in/java/org/bigbluebutton/app/video/VideoApplication.java

bbb.sh

...java/org/bigbluebutton/red5/BigBlueButtonApplication.java

...utton/red5/client/messaging/ConnectionInvokerService.java

...uebutton/red5/pubsub/redis/RedisPubSubMessageHandler.java

...button-client/resources/prod/lib/bbb_webrtc_bridge_sip.js

...utton-client/src/org/bigbluebutton/main/model/PortTest.as

...-client/src/org/bigbluebutton/main/model/PortTestProxy.as

...tton/modules/screenshare/managers/PublishWindowManager.as

...luebutton/modules/screenshare/services/red5/Connection.as

...screenshare/view/components/ScreensharePublishWindow.mxml

bigbluebutton-config/bin/bbb-conf

...button-html5/imports/api/meetings/server/eventHandlers.js

...ml5/imports/api/meetings/server/handlers/stunTurnReply.js