integrating essence of opensim-git 91e1aaa5d41c29fa17609c69ca8bc2a8017dc161 and e0c6bfa81e842f4ba1534882c6d76a3e6e94d68b:

Those patches remove unneccessary data transfers during Sim-Crossings.

Signed-off-by: ft <ft@noemail>
added new git hooks
Revert "integrating essence of opensim-git 91e1aaa5d41c29fa17609c69ca8bc2a8017dc161 and e0c6bfa81e842f4ba1534882c6d76a3e6e94d68b:"

This reverts commit bf81ef111e3289c07c739a772c35782b109e6992.

That patch removes unforeseen parts of the avatar data transfer
added a minor correction to the sit target position
the value is exactly 0.009451
corrected compabilability of those patches merged
reverted b5481a998a1d0343fd22a53c73a009efadb3c445:

the measurement was struck by terrain.
added usability to llSetCameraParams

cryptic exception messages do not help