Synchronized error messages with native php error messages
Merge branch '0.9'

Conflicts:
	lib/PhpParser/Lexer.php
	lib/PhpParser/Node/Stmt/Class.php
	lib/PhpParser/Node/Stmt/ClassMethod.php
	lib/PhpParser/Node/Stmt/Interface.php
	lib/PhpParser/Node/Stmt/Namespace.php
	lib/PhpParser/Node/Stmt/UseUse.php
	lib/PhpParser/Parser.php