`translationstring.Translator` is called with a positional argument in Pyramid 1.4

see https://github.com/Pylons/pyramid/blob/1.4/pyramid/i18n.py#L68
also wrapping `translationstring.ChameleonTranslate` results in more extracted msgids
Merge pull request #4 from witsch/translationstring-patch-fixes

updates for the `translationstring` patch