ITHACA, N.Y. — Charges have been dropped against Ira McKinley, whose arrest after saving a woman from a dog attack sparked criticism and an outpouring of community support. McKinley was arrested June 13 and charged with two class A misdemeanors — resisting arrest and obstructing governmental administration in the second degree — and violations for trespassing and disorderly conduct. The victim of the dog attack, Margaret Wakeley, condemned his a…