working on refactoring
fixed performance issue
working on webframework PROBCORE-398
working on framework
ignore nullconfig
Merge remote-tracking branch 'origin/develop' into feature/reworking

Conflicts:
	de.prob.core.rodin/META-INF/MANIFEST.MF
wrong exports
Send 404 instead of redirect if class is invalid
Merge branch 'develop' into feature/reworking
sessions are working
handle outdated calls
refactored package structure
added ClassLoader for Plugin mechanism
Merge branch 'feature/reworking' into develop