ExclusiveJailed hippie turns whiny BY JOHN LAUINGER and TINA MOOREDAILY NEWS STAFF WRITERSSunday, July 8th 2007, 4:00 AM Rebekah Johnson is accused of shooting commune leader Jeff Gross, below. Jeff Gross Rebekah's mom, Margaret Johnson, may face charges for helping her daughter while she was on the run. The ex-hippie accused of gunning for a Staten Island commune leader is playing the victim - whining that she shouldn't be locked up. "I'm a babe in the woods," Rebekah Johnson told the Daily News yesterday in an exclusive interview at Rikers Island."I can't defend myself in here."Johnson spent a year on...