Got rid of the spec related to deletePrivateChatMessages() (the method didn't exist anymore).
Added unit tests for the server side private methods used to add/remove slides.
Merge branch 'meteor-client-tests' of https://github.com/gthacoder/bigbluebutton into merge-with-tests

Conflicts:
	labs/meteor-client/app/tests/jasmine/server/unit/CollectionMethodsSpec.js
Improved the quality of usersList rendering specs and added some new test cases.

Conflicts:
	labs/meteor-client/app/tests/jasmine/client/integration/templates/usersList/usersListSpec.js
Added the first set of integration tests for the whiteboard template.
Tests almost passing