Improved tracking.

Hoverball height is now adjusted on teleport, so contraptions using it
should teleport better now. Fixed time rotor not moving during teleport.
Attempting to track the interior or any other tardis parts will now turn
tracking off. Improved notification for warning the pilot about
physlock/tracking. Fixed initial locking angle for tracking. Merged
GoLong and Go functions clientside, to reduce unnecessary complications
within the code. XCF can no longer damage the interior. Official E2 now
has an 'argument' for !track, 'me' to track E2 owner, or 'off' to
disable tracking.