Log Message:
Update to 1.0.4:

Alan Coopersmith:
      Add hooks for checking sources with tools like lint & sparse
      Clear sparse warnings: Using plain integer as NULL pointer
      Coverity #52: Dead code in get_os_name()
      Version bump: 1.0.4

James Cloos:
      Add *~ to .gitignore to skip patch/emacs droppings
      Replace static ChangeLog with dist-hook to generate from git log