- Address an issue that made items unavailable after being updated with the "updateprimitiveinventory" command (issue #245) and it might affect all avatar to task (primitive) interactions. - Modernize the "batchmute" command (might affect issue #246). - Add the "getavatarseat", "getavatarsseats" and "batchgetavatarseat" commands that are radar-bound and can return sitting avatars and their corresponding primitives that the avatars might be sitting on (note that these commands are all radar-bound and one should always pick the "sit" notification instead, both due to the asynchronicity it provides, as well as the notification being scoped to the simulator rather than the draw distance). - Various cleanups.