Merge pull request #51 from johntbush/a6db51d6404ed1923c48627c6e8814cd70c7b37f

upgrade lombok version
Added support for BigBlueButton 0.81 API
Updated welcome_message_general_info.
Removed references to %%DIALNUM%% %%CONFNUM%% that were rendered by default.
First step for implementing Clone
Step 1: Added interface and concret class for implementing EntityTransferrer
Refactored BBBMeetingService
Adapted tool name
Unified bbb-meeting and sakai-bbb to bbb-tool
Unified tool name to bbb-tool
Implemented clone based on BBBMeetingEntityProducer
Implemented cleanup on transferCopyEntities
BBB-103: Cleaned up code before final test
Fix to support "Duplicate Site" function in Sakai 2.9.2
v1.0.7-rc6: Updated version tag
BBB-103: Implemented ContextObserver. Meetings are now deleted from the database when the site is deleted.
Fixed minor bug in the client that prevented the action Edit to be executed
Updated scrips and xmls
Fixed dependency error.
(It was wrongly updated in the previous commit)
Restored servlet-name and tool-id to their original values
(The icon was missing)
BBB-97: Fix for preventing XXE vulnerabilities