Cannot use default export in react template

[rmorshea]

Current Situation

Right now, you can't use the default export from a module that came from module_from_template.

Proposed Changes

The only option I see is to include a react-default-export template that includes the default export.

Implementation Details

I'd rather not duplicate code, so maybe we can have a VERY primitive templating language, where a line starting with $TEMPLATE: ... indicates that the contents of file to follow should be inserted at that point.

If the templates get any more complicated that this we should consider a different solution.