It started with wanting to move templates in template bundles and the
rest followed. I did my best to start grouping related functions
together, but there are some that I missed. There is also the method
Urlize that seems to be a special function used in both worlds. I'll
need to revisit this method.
Tests to ensure rendering dates in templates is working correctly.
Actually, I was running into invalid templates not giving warnings when
I was trying to render a date.
Provide unit test support RenderThing.
One observation is that creating the site.Tmpl variable is a one time
event. site.Tmpl doesn't like additional templates with the same name.
This means that updating a template while in --watch mode requires
throwing away the entire Site object and creating a new one. Not that
this is a bad idea, but it is something I discovered while working on
these unit tests.
