Port "change version number for 2.43 release change year in COPYRIGHT"

Ported from cjlin1/liblinear@acf2f9c

Version 2.42

Version 2.41

Version 2.30

Version 2.21

version 2.20

version 2.11

version 1.95

add two methods:
- Model.getDecfunCoef(…)
- Model.getDecfunBias(…)

version 1.94

version 1.92