report warning when using obsolete syntax for non-null types

report warning when using obsolete syntax for non-null types

2008-04-13  Juerg Billeter  <j@bitron.ch>

	* vala/valaparser.vala: report warning when using obsolete syntax
	  for non-null types

	* */*.vala, */*.vapi: port to new syntax

svn path=/trunk/; revision=1208