Issue 176 in svnbook: 'start-commit' hook script changed in Subversion 1.8.

[svnbook at googlecode.com]

Updates:
	Status: Fixed

Comment #2 on issue 176 by cmpilato: 'start-commit' hook script changed in  
Subversion 1.8.
http://code.google.com/p/svnbook/issues/detail?id=176

Finished in r4411.