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

[svnbook at googlecode.com]

Updates:
	Summary: 'start-commit' hook script changed in Subversion 1.8.

Comment #1 on issue 176 by cmpil... at gmail.com: 'start-commit' hook script  
changed in Subversion 1.8.
http://code.google.com/p/svnbook/issues/detail?id=176

After some dev@ and IRC discussion, the 'init-commit' hook feature was  
backed out in favor of some changes to the 'start-commit' hook, namely that  
it now runs *after* the txn is created and populated with initial revprops,  
and that it now accepts the txn name as an argument so those revprops can  
be examined.