Alpha: 2.0.1 alpha 61

Hi all,

Latest alpha is up at http://www.ttdpatch.net/src/

This one finally enables new vehicle sounds, including running sounds, 
by building on the awesome foundation set by Csaba and Steven.  Now grf 
sets can give their trains and other vehicles fully customized sound 
effects, which should greatly enhance the atmosphere of the game.  If 
you'd like a very rudimentary test version to preview how this works, 
download http://www.ttdpatch.net/src/newgrfdemo/soundtst.grf - to use 
it, disable all other train sets and then build a Kirby Paul Tank 
locomotive.  Just to show that it's possible, its startup and tunnel 
sounds will sound like planes taking off, but the more important effect 
is a "clicky" running sound plus when steam puff sounds.

Aside from this, there were again a whole bunch of bugfixes and other 
improvements.  For example, Csaba has greatly improved newhouses 
processing, so that people with slower CPUs should have a noticable 
increase in game speed.

So, enjoy the new sound effects, and let's hope many sets start using 
them soon!

Josef

All changes in 2.0.1 alpha 61:
- (devel) implemented performance testing of newgrf feature var
   40+x/60+x
- fixed crash if no switch defining L6 or L7 was active