Changed the intersection_num.java program...

Hello everyone. I may be wrong (70 percent wrong I think), but as I was
going over one more time to get the generating point-pushing
homeomorphisms from the fundamental polygon, I got different answer...
So, I upload the new file... Eventhough I am changing the file, I still
have the original one. So, if mine doesn't work either, then I would
certainly change to the original one back again... Professor Dowdall, if
you have time,... could you check whether mine also get intersection
number 0 with the dilatation number positive, or not? Thank you...