- upgrade to grails 2.3.6

services/bbb-web-api/.classpath

services/bbb-web-api/build.gradle

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

...gbluebutton/web/controllers/PresentationController.groovy

...vy/org/bigbluebutton/api/RecordingServiceHelperImp.groovy

...eb-api/src/java/org/bigbluebutton/api/MeetingService.java

...eb-api/src/java/org/bigbluebutton/api/domain/Meeting.java

...-api/src/java/org/bigbluebutton/api/domain/Recording.java

...rg/bigbluebutton/api/messaging/RedisMessagingService.java

...presentation/imp/SwfSlidesGenerationProgressNotifier.java