Merge the lp-surface-tiling branch into master. Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com> Author: Brian Paul <brianp@vmware.com>