"The Rainmaker" at the Shakespeare Theatre of New Jersey Now through August 18
 Real honest-to-goodness thunder, lightning and rain created premature authenticity outside the Shakespeare Theatre of New Jersey on the evening I attended and where N. Richard Nash's classic 1954 play "The Rainmaker" is having a terrific revival. Nature's fateful, perhaps playful trick, may have actually been conjured up by the almost full week of performances given prior to my post opening visit. It is more…