Merge branch 'master' of https://github.com/bigbluebutton/bigbluebutton into new-arc-player

...re/apps/users/ChangeLockSettingsInMeetingCmdMsgHdlr.scala

...luebutton/core/apps/users/GetLockSettingsReqMsgHdlr.scala

...n/scala/org/bigbluebutton/core/running/MeetingActor.scala

.../main/scala/org/bigbluebutton/core2/MeetingStatus2x.scala

...in/scala/org/bigbluebutton/common2/domain/Meeting2x.scala

.../main/scala/org/bigbluebutton/common2/msgs/UsersMgs.scala

...on-web/src/main/java/org/bigbluebutton/api/ApiParams.java

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

...java/org/bigbluebutton/api/domain/LockSettingsParams.java

...rc/main/scala/org/bigbluebutton/api2/BbbWebApiGWApp.scala

bbb-lti/grails-app/conf/logback.xml

bbb-lti/grails-app/conf/lti-config.properties

...-app/controllers/org/bigbluebutton/lti/UrlMappings.groovy

...s/org/bigbluebutton/lti/controllers/ToolController.groovy

bbb-lti/lti.nginx

bbb-lti/src/main/webapp/assets/bbb.jpg

bbb-lti/src/main/webapp/assets/bbb_logo.jpg

bbb-lti/src/main/webapp/assets/favicon.ico

bbb-lti/src/main/webapp/assets/icon.ico

bbb-webhooks/Dockerfile