[FEATURE] list installed apps + test cleanup
[FEATURE] query app store + cleanups + LICENSE and README in app scaffold folder
[CONFIG] changed app server default URL
[CONCEPT] reworte concept app -> emzed package
[FEAUTRE] introduced emzed.app + cleanup names and concepts
[FEATURE] duplicate upload fails now
[FEAUTURE] introduced UserConfig class
[FEARURE] rewrote confing handling incl gui for editing
[REFAC] test modules refactured