add some basic documentation for statements, extend documentation

add some basic documentation for statements, extend documentation

2007-11-29  Juerg Billeter  <j@bitron.ch>

	* doc/vala/Makefile.am, doc/vala/classes.xml, doc/vala/default.css,
	  doc/vala/delegates.xml, doc/vala/enums.xml, doc/vala/exceptions.xml,
	  doc/vala/expressions.xml, doc/vala/index.xml, doc/vala/interfaces.xml,
	  doc/vala/namespaces.xml, doc/vala/statements.xml,
	  doc/vala/structs.xml, doc/vala/types.xml, doc/vala/xhtml.xsl: add some
	  basic documentation for statements, extend documentation structure

svn path=/trunk/; revision=735