Alpha: Quick fixes in alpha 51

Hi all,

I know yesterday I said that alpha 50 was going to be the last 
alpha.  Unfortunately, it had one serious bug which caused crashes.  That's 
why I'm now releasing alpha 51 which should fix these crashes.  One crash 
happened when opening the vehicle list in a depot window, and the other 
when removing certain pieces of track.

Alpha 51 also had a bug that caused it to get confused about a plane's 
breakdown status.  Because of this, the planes had a speed of 5/8 their top 
speed when they were fine, but full speed when broken down.  This is fixed 
now too.

All changes in 1.9.1 alpha 51 (July 9, 2003):
- engine variational sprites should really have been 0x82 not 0x83,
   now they're 0x82
- engine variational sprites crashed when showing vehicle list in
   depot
- `planespeed' was using speed during breakdown for regular flight
   and full speed when broken down
- action 7 can now test whether another .grf file with a certain
   GRFID has been activated, is inactive, or not loaded at all
-- 
Josef Drexler ([email protected])
http://publish.uwo.ca/~jdrexler/

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