zwischenstand
intermediate result, misses language dependend attributes, but everything is already annotated
Merge branch 'develop' into attributes

Conflicts:
	SmartAPI/erminas.SmartAPI/CMS/Project/ContentClasses/Elements/Attributes/LocaleXmlNodeAttribute.cs
basic integration tests run again
extracted server manager part of session to servermanager class
cleanup of code
removed authentication packages
imports/namespaces gefixed