FIX: Possible integer overflow/underflow issues with max template.
CODE: Remove redundant code.
VERSION: Increment to 11.25
CHANGE: Do not attempt to calculate a route where the distance is inevitably too great: this can significantly increase performance in cases where many ships are trying and failing to find routes because the distances are too long.
FIX: Possible integer precision issues in calculating the maximum in transit percentage.
FIX: Rare crash occurring when a ship passed under a bridge on open water.
FIX: Numerous issues relating to loading (TurfIt)
FIX: Issues relating to the optimisation of co-ordinate objects that might be responsible for desyncs in multi-player mode (TurfIt)
Merge branch '11.x' into 12.x

Conflicts:
	simhalt.cc
	simversion.h