Merge pull request #10458 from pedrobmarin/avatar-image

...igbluebutton/core/apps/users/RegisterUserReqMsgHdlr.scala

...n/scala/org/bigbluebutton/core/models/GuestsWaiting.scala

.../org/bigbluebutton/core2/message/senders/MsgBuilder.scala

...scala/org/bigbluebutton/core2/testdata/FakeTestData.scala

...ain/scala/org/bigbluebutton/common2/msgs/GuestsMsgs.scala

...b/src/main/java/org/bigbluebutton/api/MeetingService.java

.../main/java/org/bigbluebutton/api/ParamsProcessorUtil.java

...ponents/chat/message-list/message-list-item/component.jsx

bigbluebutton-html5/imports/ui/components/chat/service.js

...ports/ui/components/connection-status/modal/component.jsx

...imports/ui/components/connection-status/modal/styles.scss

...-html5/imports/ui/components/connection-status/service.js

...ton-html5/imports/ui/components/user-avatar/component.jsx

...utton-html5/imports/ui/components/user-avatar/styles.scss

...onents/user-list/chat-list-item/chat-avatar/component.jsx

...orts/ui/components/user-list/chat-list-item/component.jsx

...uebutton-html5/imports/ui/components/user-list/service.js

...r-participants/user-list-item/user-dropdown/component.jsx

...n-html5/imports/ui/components/waiting-users/component.jsx

bigbluebutton-web/grails-app/conf/bigbluebutton.properties