roundup-r4962-issue811-ber1.patch shows how to create a translation function
that depends on the loaded template engine. I'm using it in one place, but
a) there are other places
b) and this breaks other functions where still utf-8 is required.

Basically this patch is a concept, it may show that using the jinja2 filter approach may be more 
feasable if there is too much breakage this way.