Adds German translations for error messages in lib/mshoplib/src
Merge branch 'master' of https://github.com/Arcavias/arcavias-core into 2013-03-13_GermanTranslationErrorMessages
Merge pull request #117 from dahoffmann/2013-03-13_GermanTranslationErrorMessages

Adds German translations for error messages in lib/mshoplib/src