Fix the broken factory coverage system again.  Two, count them, two more procedure rewrites.
Merge branch 'ncn-devel' into merge-from-standard
Fix silly compilation error in last fix.
Merge branch 'ncn-devel' into merge-from-standard
Fix another disappearing-goods bug with factory coverage.
Merge branch 'ncn-devel' into merge-from-standard
Fix various potential overflow errors in simcity.cc and simhalt.cc related to journey times.
Merge branch 'ncn-devel' into merge-from-standard
Merge branch 'jp-devel' into merge-from-standard
Fix likely double-delete errors triggered by James' patch commit 77fc2bdf back in April.
Merge branch 'merge-from-standard' into ncn-devel
Revise transfer time /transshipment time calculations to provide much greater granularity.
Fix transfer times on reload.
FIX: Compile errors in Windows
FIXED: Uninitialised variables in older Experimental paksets.
Eliminate stupid reduplication causing sequence point error
Merge branch 'ncn-devel' of git://github.com/neroden/simutrans.git into 112.x-private-car-merge
FIX: Occasional divide by zero error on loading
Turn assertions on for debug builds!  (Why were they off?!?!)
Add assertion and check for missed case in dataobj/dingliste.cc (dingliste_t::add)