Allow to discard fuzzy translations in PO

[Former user]

Original [issue 73](https://code.google.com/p/okapi/issues/detail?id=73) created by @ysavourel on 2009-05-21T19:48:07.000Z:

Some PO files have translation labelled as fuzzy that do not correspond at all to the source, depending on how the file was generated. There should be an option, in the tkit preparation at least, and probably in the PO filter itself, to discard those translations.

[Former user]

Comment [1.](https://code.google.com/p/okapi/issues/detail?id=73#c1) originally posted by @ysavourel on 2009-09-03T11:29:32.000Z:

Covered by issue comment 45\..