Added Hypertek Hybrid 1685cc 125-L350 and 2800cc 172-L540 engines.
Added Hypertek Hybrid 440cc 076-J115, 098-J170 and 125-J250 engines.
More elegant data structure for motors thurst information.
Added Aerotech D24-7T motor.
Fixed a bug in displaying all possible motors.
Fixed a bug with 'Altitude at ejection', if ejection was later than at max altitude.
Accurate atmospheric density.
Fixed a bug in 0.0.0.2 in motor indexing: motor code SF_B gave SF_A's thrust profile, etc.
Check, that altitude & velocity is 0, if altitude <= 0.
Accurate empty mass of SF D -motor.
Ability to export simulation steps to a file.
Minor code readability improvements.