Updates: DebugView and ZoomIt

The following Sysinternals utilities and files have been updated:

1. DebugView v4.64 : Fixes a bug for 64-bit Windows Vista systems and the default colors are easier to read for highlight filters.
   
2. ZoomIt v1.2 : Zoomit, a screen magnification and annotation tool designed for technical presentations, now supports on-the-fly pen resizing and color changes, as well as progressive zoom-in and zoom-out to make the area of the screen on which zoom operation is focusing more obvious.