Improve pretty printing of empty statement lists

The pStmts() method now also includes the leading \n, however only
if the statement list is non-empty.
Added support for autoload $prepend
Deprecate templating functionality

Other projects cover this a lot better.
Merge branch '0.9'

Conflicts:
	lib/PhpParser/Template.php
	lib/PhpParser/TemplateLoader.php