Implements additional unlink modes (unlink root prim from link set, some
multi-set operations). Linking (single and mutiple) fully implemented.
Consistent numbering of links while in world. Link/delink with predictable
link numbering. Correct link numbers in LSL.
Not all multi-set ops implemented. Link numbers still change when taken and
re-rezzed.
"First stage in a major Script Engine refactor, that will result in the LSL implementaions ebing reconverged. Not there yet, but one major part is done."
Thank you, Melanie!
Adds full implementation of all llDetected* functions for sensors,
collisions and touches. Adds changed(CHANGED_REGION_RESTART) event
to allow restarting of eye-candy functionality not currently
persisted with the prim.
