Untranslate exceptions
i18n: Update POT
LogPrinter: Log exceptions with additional message
Strip unneeded imports
Spacing changes only
Analyzer: Make _() static

_() doesnt need access to any member and thereffore can be static.
Analyser: Check argument types
StringConverter: Remove obsolete comment

We implement the __path__ function in the Setting class which derives
from StringConverter. This totally makes sense since the Setting has the
origin and the StringConverter lacks the information to have such a
conversion.
StringConverter: Rename variable