support constants in namespaces and constants without initializer depend

support constants in namespaces and constants without initializer depend

2006-08-10  Jürg Billeter  <j@bitron.ch>

	* vala/parser.y: support constants in namespaces and constants without
	  initializer
	* vala/valasemanticanalyzer.vala: depend on implemented interfaces
	* vala/valacodegenerator.vala: always include glib-object.h for
	  interfaces, append NULL to variable argument list calls
	* vala/valainterfacewriter.vala: support constants and ellipsis
	  parameters
	* vala/valaconstant.vala: make initializer optional
	* vala/valainterface.vala: implement get_lower_case_cprefix ()
	* vala/valanamespace.vala: support constants

svn path=/trunk/; revision=95