Add simple helper script for fixture data

The script filters the output of django's dumpdata command by model
into more manageable chunks.

--HG--
extra : amend_source : e2026a76729ed38638c5651ccbb927fbe4f0249b
Fix string error when name has unicode characters
Remove unneeded template
Improvements query, remove debug output
Merge
Add weight units (i.e. slice, cup,) to the German ingredients.

Fixes #22
Only show weigt units in the user's language