Updated AllJoyn API change Docs for 3.3.2

Change-Id: Iec9275f663102cc1173892ca9c8d0940fb31b005
Added release notes for 3.3.2

Change-Id: I211493b351f7e8a0a0eaf1d928469faf9ea66a8e
housekeeping, AllJoyn API change Docs for 3.3.2