Hardcoded ones do not work with other databases who might not reset
sequences at test start.

We don't need to test all database backends with Python 2.6.

Sorting then can be broken with some databases.

This will hopefully allow to spot issues like issue #319.

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This allows to add new files from pre commit scripts.

Fixes #308.

There is check in trans/requirements.py as well, but that one comes too
late when Django 1.3 is already crashing on our example configuration.

Fixes #311.

Currently translated at 100.0% (830 of 830)

Currently translated at 100.0% (830 of 830)

Currently translated at 100.0% (830 of 830)

Currently translated at 100.0% (830 of 830)

Currently translated at 100.0% (830 of 830)

Currently translated at 100.0% (830 of 830)

Currently translated at 100.0% (830 of 830)

Currently translated at 100.0% (830 of 830)