[DOC beta] Fix YUIdoc method names
Merge pull request #3975 from bradleypriest/patch-1

Fix YUIdoc method names
Changes documentation for observable.setProperties to clarify that observers will be buffered. This makes it consistent with
Merge pull request #3986 from MiguelMadero/set_properties_doc

Changes documentation for observable.setProperties to clarify that observers will be buffered.