**** v1.0 -> v1.1 ****

FUEL.TXT no longer included with PENGUIN, as it is not relevant anymore; 
PENGUIN v1.1 does all the calculations for you. Changing Fuel usage is 
now a simple, painless process.

**** v1.1 -> v1.2 ****

Modified Fuel calculations from v1.1 didn't work! 
The fault caused recompiled fuel specs to be completly wrong (an order 
of magnitude x1000 too big). The error was down to my compiler and rounding
errors, the problem has been corrected using a function written by my good 
self.
