BY JIM HIGHTOWER “So long,” sang Woody Guthrie, “it’s been good to know you.” I’m humming that tune as George W., rides off into the sunset – just an old cowpoke headed back home to his Texas spread. No, he’s not headed to that hokey ranchette in Crawford that Karl Rove insisted he buy in 1999 to spiff up his image as a “Western guy” running for president. [Bush’s “ranch,” by the way, is so […]