Renamed deskshare to screenshare

...-html5/imports/api/1.1/screenshare/client/bridge/index.js

...tml5/imports/api/1.1/screenshare/client/bridge/service.js

...-html5/imports/api/1.1/screenshare/client/bridge/verto.js

bigbluebutton-html5/imports/api/1.1/screenshare/index.js

...html5/imports/api/1.1/screenshare/server/eventHandlers.js

...api/1.1/screenshare/server/handlers/screenshareStarted.js

...api/1.1/screenshare/server/handlers/screenshareStopped.js

...ebutton-html5/imports/api/1.1/screenshare/server/index.js

...utton-html5/imports/api/1.1/screenshare/server/methods.js

...ts/api/1.1/screenshare/server/modifiers/addScreenshare.js

.../api/1.1/screenshare/server/modifiers/clearScreenshare.js

...on-html5/imports/api/1.1/screenshare/server/publishers.js