Built from https://github.com/openmetaversefoundation/libopenmetaverse/commits/master
This update incorporates a fix by Melanie in libomv where textures would sometimes rotate slightly when other properties were changed.
Hence addresses http://opensimulator.org/mantis/view.php?id=6100
This update also incorporates libomv bot code updates that significantly reduce the warning spam for pCampbot.
The change rate of libomv is low and many changes refer to bot or code not used by OpenSimulator, so I think it is sufficiently stable to use evne though it's not a release.
this is a prerequisite to fixing llDialog issues for the latest Linden viewers, since they are now making use of a new OwnerData field in the ScriptDialog message
Main reason for upgrade is to revert API change that was introduced in order to support headerless binary LLSD decoding needed for deserialization of the mesh assets, which turned out to be unnecessary as we can transparently decode both kinds.