Update list for ClockDummy!

ClockDummy! 2.1 changelog from November 16, 2010

ClockDummy! 2.0 from November 23, 2009

Updated to support Windows 7, 32-bit and 64-bit operating systems. Minor enhancements.

ClockDummy! 1.9 changelog from January 13, 2008

Updated to support Windows Vista.

Older ClockDummy! versions:

• 2.1 (Nov 16, 2010) • 2.0 (Nov 23, 2009) • 1.9 (Jan 13, 2008) •