Remove 'namespaces' as a potential argument for Template.
Remove #stop directive.
Merge pull request #75 from bukzor/remove_stop_keyword

Remove #stop directive.
Merge pull request #76 from bukzor/remove_namespaces_kwarg

Remove 'namespaces' as a potential argument for Template.
Always use filters.
Remove allowPlaceholderFilterArgs setting.
Remove encoding compiler setting.
Remove EOLSlurp feature.
Remove #raw directive.