#301 Bug on Sk-Strings implementation

[Otmar Pereira]

Hello,

I was testing the SK-Strings implementation and I noticed that there is a small bug in SK-Strings generation because it does not consider k-strings of length smaller than k ending in a final state, according to the definition by Raman and Patrick.

I made a small modification in the SKStrings.java which is in the attached. I guess this fixes the problem with the small patch in the findSKStrings routine.