Included unmuteViewers param on create

...rg/bigbluebutton/core/apps/users/MuteUserCmdMsgHdlr.scala

.../test/scala/org/bigbluebutton/core/AppsTestFixtures.scala

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

...c/test/scala/org/bigbluebutton/common2/TestFixtures.scala

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

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

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

...b/src/main/java/org/bigbluebutton/api/domain/Meeting.java

...src/main/java/org/bigbluebutton/api2/IBbbWebApiGWApp.java

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

...html5/imports/api/meetings/server/modifiers/addMeeting.js

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

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

bigbluebutton-web/grails-app/conf/spring/resources.xml

...rs/org/bigbluebutton/web/controllers/ApiController.groovy