removed StageLists from AnalysisConfiguration and adapted Analysis and
corresponding tests

solved 3 findbugs issues

removed rule exclusion

marked error in CRAQ as seen, because this will never cause an error

should not be abstract, as suggested by PMD)

This reverts commit 6193418d.

fixed bug in performance test

config-files in the classpath, reads them and adds the corresponding
factory to the registry

all files into one

adapted pmd rules

#40 Kieker version of this stage removed, as it is not needed

helpful in the future
added test, to validate signalhandling in interthread pipes

never used