Add class comments for:

	ChronologyConstants
	Date
	Stopwatch
	Time
	TimeStamp

Tested in 3.7a-5816 image.

I recall reading an email saying we can self-approve such changesets.

Brent
-------------- next part --------------
A non-text attachment was scrubbed...
Name: chronologyClassComments-brp.2.cs.gz
Type: application/x-gzip
Size: 495 bytes
Desc: not available
Url : http://lists.squeakfoundation.org/pipermail/squeak-dev/attachments/20040312/4e8b3465/chronologyClassComments-brp.2.cs.bin