[supercollider/supercollider] 8a8831: fix scroll view problem for OS X 10.7.4

  Branch: refs/heads/master
  Home:   https://github.com/supercollider/supercollider
  Commit: 8a8831c3cf3c57f6aeedef09e43132572b5fcb34
      https://github.com/supercollider/supercollider/commit/8a8831c3cf3c57f6aeedef09e43132572b5fcb34
  Author: Joshua Parmenter <josh@...>
  Date:   2012-06-15 (Fri, 15 Jun 2012)

  Changed paths:
    M editors/scapp/GUIPrimitives.M
    M editors/scapp/SCView.M

  Log Message:
  -----------
  fix scroll view problem for OS X 10.7.4