[Oops.] Typo in DualSimplex code

[raenye]

Please verify that the error is present in the most recent revision before reporting. Yes. Chapter number or note title: http://jeffe.cs.illinois.edu/teaching/algorithms/notes/I-simplex.pdf Page number: Page 4, line 10 (that is, line 4 in the code) Error description: "while x is not feasbile" Suggested fix (if any): feasbile -> feasible