Issue 172 in svnbook: ch04: Collabnet mergeinfo paper reference is now a 404

[svnbook at googlecode.com]

Updates:
	Owner: ptbu... at gmail.com
	Labels: Milestone-en-1.8

Comment #2 on issue 172 by cmpilato: ch04: Collabnet mergeinfo paper  
reference is now a 404
http://code.google.com/p/svnbook/issues/detail?id=172

Paul: can you please review your old blog post with an eye on which bits  
remain relevant and can be reproduced in Chapter 4?  Thanks!