integrating opensim-git 0db6f3a2bdba4ffc0992facce07553a829027c5b:

the packets that are not marked reliable should never be set up that way that they trigger the reliable code path.
integrating opensim-git bc0895c758c8b206ecdd0139d982f3a5fe9b8672:

Replacement of expensive polling within the teleport code part within scene presence
Merge remote-tracking branch 'upstream/master'