Fix syntax error in previous commit.
Reintroduced fuzzy matching.
Update engine.pl.po

Changed translation for "set"
Add support for reading fuzzy flag of translations.
Do not use fuzzy strings for translations.
Update german translation for engine.
Merge pull request #482 from hean01/master

Proper handle of fuzzy string translations.
Merge pull request #483 from stefanbeller/master

Add german translation
Merge pull request #481 from Pawonashi/patch-1

Update engine.pl.po