mouselook for external cameras
make mouselook work when docked and autopiloting
Merge pull request #2976 from dvolk/external_mouselook

mouselook for external cameras
Update Changelog.txt
Fix police spawning (Closes #2983)

It used an older version of the new-equipment API, and leaked onto the
Lua stack like crazy!
This commit also introduces LUA_DEBUG_* guards.
Fix BreakdownServicing (Closes #2982)

One should always check that one calls a Lua METHOD and not a simple
function. Damnit!