repo 1.6.8

1. 2810cbc Only display a progress meter once we spend 0.5 seconds on a task by Shawn O. Pearce · Sat Apr 18 10:09:16 2009 -0700
2. 6ed4e28 Disable the progress meter when trace is enabled by Shawn O. Pearce · Sat Apr 18 09:59:18 2009 -0700
3. b1168ff Don't divide by zero in progress meter by Shawn O. Pearce · Thu Apr 16 08:00:42 2009 -0700
4. 68194f4 Add a project progress meter to 'repo sync' by Shawn O. Pearce · Fri Apr 10 16:48:52 2009 -0700