Add possible result from template

[dyve]

Allow the templates to provide data to the layout. Extremely handy when you want to add stuff to header etc. See example at my fork github.com/dyve/limonade.

I also did a change to render that makes it somewhat smarter towards the $layout parameter.

[dyve]

This could also be achieved by using content_for, which is the more obvious way to do it. Return statements tend to be confusing when used in includes, so I'd opt for content_for.

[sofadesign]

Ok ;-)