[Docs] CVS notice: activity by jon

[docs@lists.akopia.com]

CVS activity by user 'jon':
docs ictags.sdf,1.5,1.6
Update of /anon_cvs/repository/docs
In directory www.akopia.com:/tmp/cvs-serv16011

Modified Files:
	ictags.sdf 
Log Message:
Put in note about [error show_label] attribute being added in 4.7.0.
(I'm trying to do this for all docs so people know what version features
were added in.)